Which of the following changes to blood flow is expected to occur as a result of dynamic exercise? Group of answer choices An increase in cardiac output of up to 5X normal An increase in the percent of blood flow to the skeletal muscle compared to at rest All of these occur An increase in ejection fraction

Which of the following changes to blood flow is expected to occur as a result of dynamic exercise? Group of answer choices An increase in cardiac output of up to 5X normal An increase in the percent of blood flow to the skeletal muscle compared to at rest All of these occur An increase in ejection fraction

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

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section9.2: Electrical Activity Of The Heart

Problem 1CYU

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Similar questions

What two values are needed in order to calculate cardiac output (CO) for a ventricle? a. end-diastolic volume (EDV) and end-systolic volume (ESV) b. stroke volume (SV) and blood pressure (BP) c. stroke volume (SV) and heart rate (HR) d. heart rate (HR) and end-diastolic volume (ED
Stroke volume is thea. amount of blood pumped by the heart per minute.b. difference between end-diastolic and end-systolic volume.c. difference between the amount of blood pumped at rest and thatpumped at maximum output.d. amount of blood pumped from the atria into the ventricles
There are three major factors that affect stroke volume and therefore affect cardiac output: afterload, preload, and contractility. Explain how and why each of these factors affects cardiac output. Each answer must explain what the factor is as well as how it affects cardiac output.
Calculate the power generated by the right ventricle during (a) restful state; blood flow 5 L/min, and (b) intense activity; blood flow 25 L/min. Answer: (a) P = 0.25 W; (B) P = 4.5 W
Other than heart rate what are two other variables that increase with exercise and why do they increase? Possibly variables include systolic BP, Diastolic BP, MAP, R-T interval, etc.
Which of the following is a circulatory adjustment to sustained moderate exercise? A. Constriction of the cutaneous circulation B) Decreased intestinal blood flow C. Decreased venous return D. Increased renal blood flow E) Increased total peripheral vascular resistar
Which of the following is a circulatory adjustment to sustained moderate exercise?a. Constriction of the cutaneous circulationb. Decreased intestinal blood flowc. Decreased venous returnd. Increased renal blood flowe. Increased total peripheral vascular resistance
In the intrinsic regulation of blood flow, which of the following is the response expected in tissue being used during exercise? Group of answer choices Active hyperemia Reactive hyperemia Both active and reactive hyperemia Autoregulation
Consider the equation cardiac output (CO) = stroke volume (SV) X heart rate Which of the following changes would increase cardiac output? Group of answer choices An increase in afterload An increase in EDV A decrease in ventricle contractility An increase in parasympathetic system stimulation of the SA node
Name three mechanisms that can increase cardiacoutput.