Biology, asked by anish9760, 10 months ago

what are heart sound? How they are they
produced

Answers

Answered by vikashRaojaat

3

Answer:

when blood enter the heart.

the heart started beating and it produce the heart sound ...

Answered by bharatbsr

0

Explanation:

during the contraction and relaxationof ventricles and auricles of heart produce lubdub sound

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