Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 53, Problem 5TY
Summary Introduction
Introduction:
The cardiac output is the measure of the volume of the blood pumped by the heart per beat. The number of beats per minute is known as the rate of heartbeat. The total capacity of the heart per minute gives the volume of the blood pumped by the heart per minute.
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If cardiac output is 16L/min during jogging, and 25% of total blood flow is being diverted to skeletal muscle, how much blood is being delivered to skeletal muscle in L/min?
a.
2
b.
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c.
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d.
1
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During exercise, the stroke volume reaches its peak when the cardiac output is at about what percent of its maximum? A. 30 percent B. 40 percent C. 50 percent D. 60 percent
5
29.At maximal exercise, a recreationally active individual has an a-vO2 difference of 0.16 mL O2/mL of blood, a stroke volume of 122 mL, and a heart rate of 191 bpm. What is their V̇O2max?
A. 3960 mL/min
B. 4150 mL/min
C. 3620 mL/min
D. 3730 mL/min
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