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Cardiac Output

In humans, th...

Question

In humans, the volume of blood pumped out by each ventricle per minute is

A

3600 mL

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B

5040 mL

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C

2520 mL

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D

9360 mL

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Solution

The correct option is B 5040 mL
Cardiac output is the volume of blood being pumped by the heart in a minute. It is equal to the heart rate multiplied by the stroke volume.
During a cardiac cycle, each ventricle pumps out approximately 70 mL of blood. (Stroke volume)

Cardiac output = Stroke volume × Number of beats per minute = 70 mL × 72
= 5040 mL/min

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