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Q.
In a resting healthy man, the heart pumps how many litres of blood per minute?
Body Fluids and Circulation
Solution:
Cardiac output is determined by the product of stroke volume and heart rate. At rest, stroke volume is about $70\, mL$ and heart rate is 72 beats per minute. Thus, the cardiac output is $72 \times 70$ or $5040\, mL$ i.e., about $5.5$ litres blood per minute is pumped by the human heart.