Fundamentals of Anatomy & Physiology - Text Only (Instructor's)
10th Edition
ISBN: 9780321939685
Author: Martini
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 9RQ
Cardiac output is equal to the (a) difference between the end-diastolic volume and the end-systolic volume, (b) product of heart rate and stroke volume, (c) difference between the stroke volume at rest and the stroke volume during exercise, (d) stroke volume less the end-systolic volume, (e) product of heart rate and blood pressure.
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What is stroke volume? What is its relation will cardiac output ?
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Which organs have an increased proportion of cardiac output during exercise? Which receive a decreased proportion of cardiac output during exercise?
Chapter 20 Solutions
Fundamentals of Anatomy & Physiology - Text Only (Instructor's)
Ch. 20 - Prob. 1CPCh. 20 - Prob. 2CPCh. 20 - Why is the left ventricle more muscular than the...Ch. 20 - Prob. 4CPCh. 20 - Which structure of the heart is known as the...Ch. 20 - 6. If the cells of the SA node did not function,...Ch. 20 - Why is it important for impulses from the atria to...Ch. 20 - Give the technical terms for heart contraction and...Ch. 20 - List the phases of the cardiac cycle.Ch. 20 - Is the heart always pumping blood when pressure in...
Ch. 20 - What could cause an increase in the size of the...Ch. 20 - Define cardiac output.Ch. 20 - Prob. 13CPCh. 20 - Prob. 16CPCh. 20 - Prob. 14CPCh. 20 - Prob. 15CPCh. 20 - Prob. 17CPCh. 20 - Prob. 18CPCh. 20 - Prob. 20CPCh. 20 - The great cardiac vein drains blood from the heart...Ch. 20 - The autonomic centers for cardiac function are...Ch. 20 - Prob. 5RQCh. 20 - Prob. 6RQCh. 20 - The heart is surrounded by the (a) pleural cavity,...Ch. 20 - The cardiac skeleton of the heart has which two of...Ch. 20 - Cardiac output is equal to the (a) difference...Ch. 20 - Identify the superficial structures in the...Ch. 20 - Identify the structures in the following diagram...Ch. 20 - During diastole, a chamber of the heart (a)...Ch. 20 - During the cardiac cycle, the amount of blood...Ch. 20 - What role do the chordae tendineae and papillary...Ch. 20 - Describe the three distinct layers that make up...Ch. 20 - What are the valves in the heart, and what is the...Ch. 20 - Trace the normal pathway of an electrical impulse...Ch. 20 - What is the cardiac cycle? What phases and events...Ch. 20 - What three factors regulate stroke volume to...Ch. 20 - The cells of the conducting system differ from the...Ch. 20 - Which of the following is longer? (a) the...Ch. 20 - If the papillary muscles fail to contract, (a) the...Ch. 20 - Cardiac output cannot increase indefinitely...Ch. 20 - Describe the function of the SA node in the...Ch. 20 - What are the sources and significance of the four...Ch. 20 - Differentiate between stroke volume and cardiac...Ch. 20 - What factors influence cardiac output?Ch. 20 - What effect does sympathetic stimulation have on...Ch. 20 - Describe the effects of epinephrine,...Ch. 20 - Vern is suffering from cardiac arrhythmias and is...Ch. 20 - Harvey has a heart murmur in his left ventricle...Ch. 20 - The following measurements were made on two...Ch. 20 - Prob. 31RQCh. 20 - Prob. 1CCCh. 20 - Prob. 2CC
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- Why must this change occur? (in reference to how does the heart rate differ before and after exercise?)arrow_forwardCan you please explain in detail : is the ventricular afterload a determinant of cardiac performance, or does cardiac performance determine the afterload?arrow_forwardWhy does heart rate increase with exercise?arrow_forward
- What is the importance and the physiology of the cardiac conduction system?arrow_forwardDuring heavy exercise, how much cardiac output may increase?arrow_forwardStroke volume is equal to the ______. A amount of blood pumped in a single beat by both ventricles combined B amount of blood in the right (or left) ventricle at the end of diastole minus the amount of blood in the right (or left) ventricle at the end of systole C end systolic volume minus the end diastolic volume D amount of blood pumped by the heart in one minutearrow_forward
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