Question

Q. 146. Amount of blood pumped by both ventricles per cardiac cycle is
1) 70 ml
2) 140 ml
3) 5040 ml
4) 72 ml​

Answer 1

Answer:

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Explanation:

2) 140 ml

Answer 2

Question Correction:In a cardiac cycle, if the stroke volume is 70 ml and heart rate is 72 beats/min, the cardiac output is??

Cardiac output is defined as the blood pumped by left ventricle into aorta or from right ventricle into pulmonary artery per minute.

Cardiac output is calculated as: Stroke volume x heart rate

In the question, stroke volume is given 70 ml and heart rate is given 72 beats/min

Therefore, cardiac output = 70 x 72 = 5040 ml/min

So, the correct answer is '5040 ml/min'.