PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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T/F Cardiac output increases during exercise.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -CO is equal to heart rate multiplied by stroke volume: This statement is true. Cardiac output (CO) is the product of heart rate (HR) and stroke volume (SV), which represents the amount of blood pumped by the heart per minute.
Detailed explanation-2: -Dynamic exercise increases the metabolic demand of the exercising skeletal muscle which can be met only by increasing the blood flow to the exercising muscle. Under conditions of maximal exertion, the cardiac output may increase more than fourfold to meet this need.
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