Answered: What is cardiac output? How do you…

What is cardiac output? How do you anticipate increased heart rate to impact stroke volume? Briefly explain your answer by outlining the impact of heart rate on the phases of the cardiac cycle.

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 2CYU

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What is cardiac output? How do you anticipate increased heart rate to impact stroke volume? Briefly explain your answer by outlining the impact of heart rate on the phases of the cardiac cycle.

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There are three major factors that affect stroke volume and therefore affect cardiac output: afterload, preload, and contractility. Select two of these factors and explain how and why each affects cardiac output.
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60) If the TV=50 and the ERV = 100 and the IRV = 75 and the RV = 200, what is the VC? Group of answer choices 175 425 150 125 225 61) Referring to the Cardiac Output formula, which value is most important in determining the cardiac output for an individual who is not in good shape? Group of answer choices Heart Rate End-diastolic volume Stroke Volume End-systolic volume 63) Carbon monoxide binds to hemoglobin _____times as strongly as oxygen does. Group of answer choices 25 200 50 100 2 64) When exercising, Starling’s Law comes into effect. Constantly contracting muscles will increase the venous return to the heart. Which of the following will be true in this case? Group of answer choices Local constriction of precapillary sphincters that control blood flow to the exercising muscle Decrease in Heart Rate Dilation of blood vessels that go to the digestive organs Decrease in the diameter of blood vessels to the exercising muscles Increase in…
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