Answered: uppose it were the pulmonary semilunar…

uppose it were the pulmonary semilunar valve that were stenotic. Which of the four chambers of the heart would have its workload increased the most

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section: Chapter Questions

Problem 13RE

See similar textbooks

Related questions

Q: Parietal pericardium _Myocardium Visceral pericardium Chordae tendinae Papillary muscles A Cardiac…

A: The heart is a solid organ about the size of a clench hand, found simply behind and marginally left…

Q: 4. Why are coronary arteries so easily blocked by floating embolisms? 5.One of the first diagnostic…

A: A heart attack, medically known as a myocardial infarction (MI), is a life-threatening…

Q: How can first aid CPR and defibrillator rescue heart function?

A: Electrical signal starts in a group of cells called sinoatrial node(SA). SA node called the…

Q: 4.Why does the right ventricle need to pump the blood to the lungs via the left and right pulmonary…

A: Heart is muscular pumping structure which is used to supply oxygen rich blood to all parts of body.…

Q: Which chamber of the heart receives oxygen-rich blood directly from the pulmonary veins?

A: The heart is an organ found in animals that is responsible to pumps blood through blood vessels of…

Q: 10. If given a diagram of the heart, such as the one below, be able to identify each of the…

A: The heart works like a pump and like any pump it needs electric conduction to carry out its…

Q: S. Fill in the blanks with the correct terms to describe the path of blood flow through the heart…

Q: 2. Which of the following statements accurately compares systole and diastole? a. During systole,…

A: The circulatory system comprises of heart and blood vessels. The blood which is devoid of oxygen and…

Q: 2. Cardiac impulse is originated from which part of the heart?

A: The heart is a conical muscular organ situated in the middle mediastinum that pumps blood into the…

Q: Fill-in-the-blanks: Blood flow into the_________ (pulmonary circuit/systemic circuit) would…

A: Arteries carries oxygenated blood in the body except pulmonary artery which carries deoxygenated…

Q: 7. If your instructor asked you to explain why the myocardium is thicker in the left ventricle than…

A: Heart is the major organ of the cardiovascular system. It is the mesodermally derived organ and it…

Q: Which of the following is not an effect of contraction of the heart? increase volume in aorta…

A: The cardiac cycle is the time period starting from the atrial contraction and ending with the…

Q: 14. What muscles attach to the chordae tendineae to hold the valves in place? 15. What are the flaps…

A: The muscular organ known as the heart is situated in the chest and leans slightly to the left. It…

Q: In a non-innervated heart Preload will increase: A. Peripheral resistance. B. Aortic…

A: NON INNERVATED HEART : non innervated heart means when heart is deficient of sympathetic and para…

Q: If the left side of the heart were failing, how would this change the pressure that the right side…

A: Ans- If the left side of the heart were failing, it will become more difficult for the right…

Q: Which heart sound is deeper pitched and more prolonged? Lub or Dup. Closure of what valves (and the…

A: Q1. Heart Sounds: The noises made by the beating heart and the blood flowing through it are known as…

Q: 7. High pressure in the systemic and pulmonary circuits often results in ventricular hypertrophy, in…

A: The enlargement of tissue of the body refers to hypertrophy. This is the condition in which the size…

Q: 3.Define systolic and diastolic phases of the heart.

A: * Every single beat of heart of heart is called cardiac cycle. * And every cardiac cycle will have…

Q: 12. Explain how the heart valves keep blood flowing in one direction.?

A: The Human heart is constantly working to pump the blood from arteries and veins to the body and this…

Q: In ventricular fibrillation, there is no pattern visible in the EKG. What does this mean in terms of…

A: Venticular fibrillation produces irregular electrical signals in the muscles of the ventricles .

Q: 3. When valves (all 4) of heart open and close? Explain the mechanism.

A: The heart is one of the important and essential organs in our body. The heart pumps blood throughout…

Q: Which heart sound is higher pitched and shorter in duration? Lub or Dup Closure of what valves (and…

A: The heart is the muscular organ of the cardiovascular system.

Q: How would a stenotic bicuspid valve affect the movement of blood from the left atrium to the left…

A: The narrowing of the gap in the mitral valve, which lies between the left atrium and the left…

Q: Please compare and contrast the anatomy of the heart in a) most reptiles (turtles, snakes, lizards)…

A: Difference between Avian heart and Reptilian heart. S. No. Differential characters Bird's Heart…

Q: 18. Under the microscope, I can see a section through one of the chambers of the heart. The…

A: The heart is a vital organ which is a large, muscular organ that pumps blood filled with oxygen and…

Q: 0. Segment representing the time heart muscle is electrically silent 18. Waveform representing total…

A: The human heart is an organ that pumps blood through the circulatory system's veins, giving oxygen…

Q: 5. Describe the conductions of electrical signals through the heart. answer this question with a…

A: Heart - The heart is a hollow organ situated in the middle region of the chest. The heart is…

Q: Explain the role of the autonomic divisions in control of heart rate.

A: Autonomic nervous system consists of two branches sympathetic and parasympathetic nervous system.…

Q: 6. Describe the mechanical events of the cardiac cycle (as in Figure 14.18a), including isovolumic…

A: Heart is a muscular organ that is present in front and middle of the chest, just behind and slightly…

Q: Which of the four chambers of the heart would have its workload increased the most by a stenotic…

A: Stenotic bicuspid valve is the condition where the aortic valve gets narrowed down and comprises of…

Concept explainers

Anatomical Position

Anatomical position refers to the position in which an individual faces forward with their upper limbs stretched to both sides with palms facing forward. The standard anatomical position of the body is used to reference other anatomical aspects of the body.

Question

3. Suppose it were the pulmonary semilunar valve that were stenotic. Which of the four chambers of the heart would have its workload increased the most and why?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

Which of the following lists the valves in the order through which the blood flows from the vena cava through the heart? tricuspid, pulmonary semilunar, bicuspid, aortic semilunar mitral, pulmonary semilunar, bicuspid, aortic semilunar aortic semilunar, pulmonary semilunar, tricuspid, bicuspid bicuspid, aortic semilunar, tricuspid, pulmonary semilunar
A characteristic of blood circulation through or to the heart is that: a. the superior vena cava conveys blood to the head. b. the inferior vena cava conveys blood to the right atrium. c. the pulmonary arteries convey blood from the lungs to theleft atrium. d. the pulmonary veins convey blood into the left ventricle. e. the aorta branches into two coronary arteries that conveyblood from heart muscle.
Which of the following slows the heart rate and AV conduction? A. Resting membrane potential B. Parasympathetic nervous system C. Pacemaker D. Phase 0
An electrical difference across the fibers of the heart is called the A. Absolute refractory period B. Resting membrane potential C. Action potential D. Depolarization
The ________ layer secretes chemicals that help to regulate ionic environments and strength of contraction and serve as powerful vasoconstrictors. pericardial sac endocardium myocardium epicardium
The heartbeat includes: a. the systole when the heart relaxes and fills. b. the diastole when the heart contracts and empties. c. pressure that causes the AV valves to open, filling the ventricles. d. rising pressure in the ventricles to open the AV valves and close the SL valves. e. the lub sound when the SL valves open and the dub sound when the AV valves close.
The tricuspid valve lies between the A. Right atrium and the right ventricle B. Left ventricle and the aorta C. Right ventricle and the pulmonary artery D. Left atrium and the left ventricle
Contraction of __________ drives the flow of blood through the aorta and pulmonary arteries. a. atria b. ventricles
Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram of actual heart valves opening and closing. Although much of the heart has been removed from this gif loop so the chordae tendineae are not visible, why is their presence more critical for the atrioventricular valves (tricuspid and mitral) than the semilunar (aortic and pulmonary) valves?
Which of the following is not important in preventing backflow of blood? chordae tendineae papillary muscles AV valves endocardium
Characteristics of veins and venules are: a. thick walls. b. large muscle mass in the walls. c. a large quantity of elastin in the walls. d. low blood volume compared with arteries. e. one-way valves to prevent backflow of blood.
The myocardium would be the thickest in the ________. left atrium left ventricle right atrium right ventricle