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What is Meant by 'Heart Beat'? What is the Usual Heart Beat Rate at Rest? - Science

What is meant by 'heart beat'? What is the usual heart beat rate at rest?

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Solution

Heart beat is the rhythmic contraction and relaxation of the heart, which includes one systole (contraction phase) and one diastole (relaxation phase) of the heart. At rest, human heart usually beats 70 to 72 times per minute.

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Lakhmir Singh Class 10 Biology (Science)
Chapter 1 Life Processes
Q 49.1 | Page 74
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