Q.

If the end systolic volume is 70 ml and end diastolic volume is 120 ml then the stroke volume and rate of heart beat to pump 5 litres blood will be 

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a

70 ml, 72 times 

b

100 ml, 80 times

c

50 ml, 100 times 

d

70 ml, 100 times 

answer is B.

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Detailed Solution

SV = EDV – ESV = 120-70 = 50 mL
Cardiac output = 5 L/5000 mL
Rate of heart =Cardiac  outputSV=500050=100

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If the end systolic volume is 70 ml and end diastolic volume is 120 ml then the stroke volume and rate of heart beat to pump 5 litres blood will be