Question

What constitutes one Heartbeat ? Is the pulse rate same as heart beat rate?
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)

Answer 1

Heartbeat is due to the rhythmic contraction and relaxation of heart muscles. one contraction (systole)and one relaxation (diastole) of  heart constitute one heartbeat.

The pulse rate is same as heart beat rate the contraction of the heart is felt in certain areas like the wrist in the form of pulsations and this is called pulse rate.

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Answer 2

ANSWER


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Heartbeat is due to the rhythmic contraction and relaxation of heart muscles.

one contraction and one relaxation of heart constitute one heartbeat.


The pulse rate is same as heart beat rate the contraction of the heart is felt n certain areas like the wrist in the orm of pulsations and this is called pulse rate