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What is heartbeat

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What is heartbeat

Posted by Kalpana Siva Shankar 4 years, 2 months ago

CBSE > Class 05 > EVS

1 answers

Yogita Ingle 4 years, 2 months ago

When the heart is busy with pumping blood, the different chambers of the heart open and close, or contract and relax. Each time the chambers contract or relax, a thumping sound is produced. This is what is known as the heartbeat.

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Posted by Jawed Khan 8 months, 3 weeks ago

CBSE > Class 05 > EVS