PATHOLOGY MCQ
HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How our activity affect the pulse rate?
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If we do more activites, our pulse rate is slower
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It does not affect the pulse rate
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If we do more activities, our pulse rate is faster
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None of the above
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Explanation:
Detailed explanation-1: -During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself. During exercise, your heart typically beats faster so that more blood gets out to your body.
Detailed explanation-2: -When anybody exercises, their cardiac output will increase because the extra demand for oxygen and glucose due to increased respiration, results in an increased heart rate (ref equation). Exercise increases venous blood return to the heart, this causes increase in heart rate.
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