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Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBody Fluids and Circulation2 Marks
Question
What is stroke volume? What is its relation with cardiac output?
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Answer

During one cardiac cycle or one heart beat the volume of blood pumped by the heart is called stroke volume. This is normally 70mL.
In one minute the heart beats about 72 times and the amount of blood pumped per minute is called cardiac output. This is usually 4900ml - 5 litres.

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