Videos
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 |
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Want to see more full solutions like this?
Chapter 22 Solutions
HUMAN ANATOMY-W/CONNECTPLUS >IP<
- What is this?arrow_forwardMolecular Biology A-C components of the question are corresponding to attached image labeled 1. D component of the question is corresponding to attached image labeled 2. For a eukaryotic mRNA, the sequences is as follows where AUGrepresents the start codon, the yellow is the Kozak sequence and (XXX) just represents any codonfor an amino acid (no stop codons here). G-cap and polyA tail are not shown A. How long is the peptide produced?B. What is the function (a sentence) of the UAA highlighted in blue?C. If the sequence highlighted in blue were changed from UAA to UAG, how would that affecttranslation? D. (1) The sequence highlighted in yellow above is moved to a new position indicated below. Howwould that affect translation? (2) How long would be the protein produced from this new mRNA? Thank youarrow_forwardMolecular Biology Question Explain why the cell doesn’t need 61 tRNAs (one for each codon). Please help. Thank youarrow_forward
- Molecular Biology You discover a disease causing mutation (indicated by the arrow) that alters splicing of its mRNA. This mutation (a base substitution in the splicing sequence) eliminates a 3’ splice site resulting in the inclusion of the second intron (I2) in the final mRNA. We are going to pretend that this intron is short having only 15 nucleotides (most introns are much longer so this is just to make things simple) with the following sequence shown below in bold. The ( ) indicate the reading frames in the exons; the included intron 2 sequences are in bold. A. Would you expected this change to be harmful? ExplainB. If you were to do gene therapy to fix this problem, briefly explain what type of gene therapy youwould use to correct this. Please help. Thank youarrow_forwardMolecular Biology Question Please help. Thank you Explain what is meant by the term “defective virus.” Explain how a defective virus is able to replicate.arrow_forwardMolecular Biology Explain why changing the codon GGG to GGA should not be harmful. Please help . Thank youarrow_forward
- Stage Percent Time in Hours Interphase .60 14.4 Prophase .20 4.8 Metaphase .10 2.4 Anaphase .06 1.44 Telophase .03 .72 Cytukinesis .01 .24 Can you summarize the results in the chart and explain which phases are faster and why the slower ones are slow?arrow_forwardCan you circle a cell in the different stages of mitosis? 1.prophase 2.metaphase 3.anaphase 4.telophase 5.cytokinesisarrow_forwardWhich microbe does not live part of its lifecycle outside humans? A. Toxoplasma gondii B. Cytomegalovirus C. Francisella tularensis D. Plasmodium falciparum explain your answer thoroughly.arrow_forward
- Select all of the following that the ablation (knockout) or ectopoic expression (gain of function) of Hox can contribute to. Another set of wings in the fruit fly, duplication of fingernails, ectopic ears in mice, excess feathers in duck/quail chimeras, and homeosis of segment 2 to jaw in Hox2a mutantsarrow_forwardSelect all of the following that changes in the MC1R gene can lead to: Changes in spots/stripes in lizards, changes in coat coloration in mice, ectopic ear formation in Siberian hamsters, and red hair in humansarrow_forwardPleiotropic genes are genes that (blank) Cause a swapping of organs/structures, are the result of duplicated sets of chromosomes, never produce protein products, and have more than one purpose/functionarrow_forward
Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning
Fundamentals of Sectional Anatomy: An Imaging App...BiologyISBN:9781133960867Author:Denise L. LazoPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning