A) cardiac cycle
B) stroke volume
C) cardiac output
D) vital capacity
Correct Answer: B
Solution :
: Stroke volume is the volume of blood ejected at each stroke of the heart during systole i.e., the phase of the heart beat during which the ventricles of the heart contract to force blood into the arteries. A typical stroke volume for a normal person at rest is 70 ml; this increases to a maximum of 120 ml during strenuous exercise.
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