Q.

During successive cardiac cycles, the atrial systole accounts for about 30% filling of each ventricle. This is about

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a

21 mL

b

70 mL

c

49 mL

d

36 mL

answer is A.

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Detailed Solution

During successive cardiac cycles, the atrial systole accounts for about 30% filling of each ventricle. This is about 21 mL.

Stroke volume = 70 mL

30% of 70 mL is 21 mL.

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