Question

what is heart beat .............​

Answer 1

Answer:

When blood flows out of heart through arteries the blood exerts tremendous pressure on our arteries.

The arteries in turn contract & relax.This results in heart beat.The sound of heart beat is described to be "LUBB" & "DUPP".

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Answer 2

✧ Rate of heartbeat is the pulse rate per minute. Heart beats to circulate blood to all the parts of the body. A heartbeat is a two-part pumping action that takes about a second. As blood collects in the upper chambers.