Match each numbered item with the most closely related lettered item. 1. right marginal artery a. veins that carry blood to right atrium 2. pulmonary veins b. period of relaxation 3. left AV valve c. contains three cusps; also known as tricuspid valve 4. diastole d. specialized junction between cardiac muscle cells 5. SA node e. veins that carry blood to left atrium 6. venae cavae f. period of contraction 7. Intercalated disc g. branch of right coronary artery 8. right AV valve h. initiator of heartbeat 9. circumflex artery i. branch of left coronary artery 10. systole j. also known as bicuspid or mitral valve

Question

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Answer 1

Textbook Question

Chapter 22, Problem 1M

Match each numbered item with the most closely related lettered item.

1. right marginal artery	a. veins that carry blood to right atrium
2. pulmonary veins	b. period of relaxation
3. left AV valve	c. contains three cusps; also known as tricuspid valve
4. diastole	d. specialized junction between cardiac muscle cells
5. SA node	e. veins that carry blood to left atrium
6. venae cavae	f. period of contraction
7. Intercalated disc	g. branch of right coronary artery
8. right AV valve	h. initiator of heartbeat
9. circumflex artery	i. branch of left coronary artery
10. systole	j. also known as bicuspid or mitral valve

Expert Solution

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Expert Solution

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Expert Solution

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Expert Solution

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Expert Solution

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Expert Solution

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Expert Solution

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Expert Solution

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Expert Solution

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Expert Solution

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

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Answer 2

Textbook Question

Chapter 22, Problem 1M

Match each numbered item with the most closely related lettered item.

1. right marginal artery	a. veins that carry blood to right atrium
2. pulmonary veins	b. period of relaxation
3. left AV valve	c. contains three cusps; also known as tricuspid valve
4. diastole	d. specialized junction between cardiac muscle cells
5. SA node	e. veins that carry blood to left atrium
6. venae cavae	f. period of contraction
7. Intercalated disc	g. branch of right coronary artery
8. right AV valve	h. initiator of heartbeat
9. circumflex artery	i. branch of left coronary artery
10. systole	j. also known as bicuspid or mitral valve

Expert Solution

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Expert Solution

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Expert Solution

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Expert Solution

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Expert Solution

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Expert Solution

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Expert Solution

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Expert Solution

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Expert Solution

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Expert Solution

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

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Answer 3

Textbook Question

Chapter 22, Problem 1M

Match each numbered item with the most closely related lettered item.

1. right marginal artery	a. veins that carry blood to right atrium
2. pulmonary veins	b. period of relaxation
3. left AV valve	c. contains three cusps; also known as tricuspid valve
4. diastole	d. specialized junction between cardiac muscle cells
5. SA node	e. veins that carry blood to left atrium
6. venae cavae	f. period of contraction
7. Intercalated disc	g. branch of right coronary artery
8. right AV valve	h. initiator of heartbeat
9. circumflex artery	i. branch of left coronary artery
10. systole	j. also known as bicuspid or mitral valve

Expert Solution

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Expert Solution

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Expert Solution

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Expert Solution

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Expert Solution

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Expert Solution

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Expert Solution

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Expert Solution

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Expert Solution

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Expert Solution

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

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Answer 4

Textbook Question

Chapter 22, Problem 1M

Match each numbered item with the most closely related lettered item.

1. right marginal artery	a. veins that carry blood to right atrium
2. pulmonary veins	b. period of relaxation
3. left AV valve	c. contains three cusps; also known as tricuspid valve
4. diastole	d. specialized junction between cardiac muscle cells
5. SA node	e. veins that carry blood to left atrium
6. venae cavae	f. period of contraction
7. Intercalated disc	g. branch of right coronary artery
8. right AV valve	h. initiator of heartbeat
9. circumflex artery	i. branch of left coronary artery
10. systole	j. also known as bicuspid or mitral valve

Expert Solution

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Expert Solution

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Expert Solution

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Expert Solution

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Expert Solution

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Expert Solution

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Expert Solution

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Expert Solution

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Expert Solution

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Expert Solution

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Expert Solution

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Expert Solution

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Expert Solution

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Expert Solution

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Expert Solution

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Expert Solution

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Expert Solution

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Expert Solution

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Expert Solution

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 8

Expert Solution

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Answer 9

Expert Solution

Answer 10

Expert Solution

Answer 11

Expert Solution

Answer 12

Summary Introduction

a.

To determine:

The term that most closely relates to “veins that carry blood to right atrium.”

Correct answer:

veins that carry blood to right atrium: venae cavae.

Explanation:

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 13

Answer to Problem 1M

Correct answer:

veins that carry blood to right atrium: venae cavae.

Answer 14

Explanation of Solution

Superior and inferior venae cavae are the largest veins of the body that carry de-oxygenated blood from all over the body in the right atrium of the heart.

Answer 15

Expert Solution

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Answer 16

Expert Solution

Answer 17

Expert Solution

Answer 18

Expert Solution

Answer 19

Summary Introduction

b.

To determine:

The term that most closely relates to the “period of relaxation.”

Correct answer:

period of relaxation: diastole.

Explanation:

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 20

Answer to Problem 1M

Correct answer:

period of relaxation: diastole.

Answer 21

Explanation of Solution

Diastole is the relaxation phase of the chamber of the heart. During this phase, the myocardium of the particular chamber, which is in diastole, relaxes, and the blood enters into the chamber.

Answer 22

Expert Solution

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Answer 23

Expert Solution

Answer 24

Expert Solution

Answer 25

Expert Solution

Answer 26

Summary Introduction

c.

To determine:

The term that most closely relates to “contains three cusps; also known as tricuspid valve.”

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Explanation:

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 27

Answer to Problem 1M

Correct answer:

contains three cusps; also known as tricuspid valve: right AV valve.

Answer 28

Explanation of Solution

The right AV valve, which is also known as the tricuspid valve, is a one-way valve in the heart and allows the unidirectional flow of blood. It closes during the ventricular systole that helps in preventing the back-flow of blood from the right ventricle into the right atrium.

Answer 29

Expert Solution

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Answer 30

Expert Solution

Answer 31

Expert Solution

Answer 32

Expert Solution

Answer 33

Summary Introduction

d.

To determine:

The term that most closely relates to “specialized junction between cardiac muscle cells.”

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Explanation:

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 34

Answer to Problem 1M

Correct answer:

specialized junction between cardiac muscle cells: Intercalated disc.

Answer 35

Explanation of Solution

The specialized microscopic identifying features of cardiac muscles are called intercalated discs. These discs help in connecting the heart muscle cells that work as a single functional organ.

Answer 36

Expert Solution

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Answer 37

Expert Solution

Answer 38

Expert Solution

Answer 39

Expert Solution

Answer 40

Summary Introduction

e.

To determine:

The term that most closely relates to “veins that carry blood to left atrium.”

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Explanation:

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 41

Answer to Problem 1M

Correct answer:

veins that carry blood to left atrium: pulmonary veins.

Answer 42

Explanation of Solution

Pulmonary veins carry the oxygenated blood from the lungs and drop it into the left atrium, from where it is further circulated into the whole body.

Answer 43

Expert Solution

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Answer 44

Expert Solution

Answer 45

Expert Solution

Answer 46

Expert Solution

Answer 47

Summary Introduction

f.

To determine:

The term that most closely relates to “period of contraction.”

Correct answer:

period of contraction: systole.

Explanation:

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 48

Answer to Problem 1M

Correct answer:

period of contraction: systole.

Answer 49

Explanation of Solution

It is the contraction period of the heart. Systolic contraction of the heart pumps the blood into the aorta and pulmonary trunk. This period is between the first and second heart sound in a cardiac cycle.

Answer 50

Expert Solution

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Answer 51

Expert Solution

Answer 52

Expert Solution

Answer 53

Expert Solution

Answer 54

Summary Introduction

g.

To determine:

The term that most closely relates to “branch of right coronary artery.”

Correct answer:

branch of right coronary artery: right marginal artery.

Explanation:

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 55

Answer to Problem 1M

Correct answer:

branch of right coronary artery: right marginal artery.

Answer 56

Explanation of Solution

The right marginal artery is one of the branches of the right coronary artery. It follows an acute cardiac margin of the heart and is responsible for supplying branches to both the surfaces of the right ventricle.

Answer 57

Expert Solution

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Answer 58

Expert Solution

Answer 59

Expert Solution

Answer 60

Expert Solution

Answer 61

Summary Introduction

h.

To determine:

The term that most closely relates to “initiator of heartbeat.”

Correct answer:

initiator of heartbeat: SA node.

Explanation:

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 62

Answer to Problem 1M

Correct answer:

initiator of heartbeat: SA node.

Answer 63

Explanation of Solution

SA node or sinoatrial node is present in the walls of the right atrium of the heart. It is a group of cells that is responsible for generating the electric impulse that keeps the beating of the heart.

Answer 64

Expert Solution

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Answer 65

Expert Solution

Answer 66

Expert Solution

Answer 67

Expert Solution

Answer 68

Summary Introduction

i.

To determine:

The term that most closely relates to “branch of left coronary artery.”

Correct answer:

branch of left coronary artery: circumflex artery.

Explanation:

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 69

Answer to Problem 1M

Correct answer:

branch of left coronary artery: circumflex artery.

Answer 70

Explanation of Solution

The circumflex artery starts from the left coronary artery and performs the functioning of supplying blood to the major part of the left atrium along with posterior and lateral free walls of the left ventricle. A blockage in this artery is responsible for heart attacks.

Answer 71

Expert Solution

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 72

Expert Solution

Answer 73

Expert Solution

Answer 74

Expert Solution

Answer 75

Summary Introduction

j.

To determine:

The term that most closely relates to “also known as bicuspid or mitral valve.”

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Explanation:

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.

Answer 76

Answer to Problem 1M

Correct answer:

also known as bicuspid or mitral valve: left AV valve.

Answer 77

Explanation of Solution

The AV valves are mitral and tricuspid valves that are present between atrium and ventricles. They are very important in preventing the backflow of the blood from ventricles into the atriums.