Science, asked by RiyaMohekar98, 2 months ago

Sukun Milta Hai Jab Unse Baat Hoti Hai,
Hajaar Raaton Mein Woh Ek Raat Hoti Hai,
Nigah Uthakar Jab Dekhte Hain Woh Meri Taraf,
Mere Liye Wohi Pal Poori Kaaynat Hoti Hai.


what is mean by heart beat? ​

Answers

Answered by raotripti10gmailcom
3

Explanation:

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Attachments:
Answered by Manash2243
8

A heartbeat is a two-part pumping action that takes about a second. As blood collects in the upper chambers (the right and left atria), the heart's natural pacemaker (the SA node) sends out an electrical signal that causes the atria to contract.

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