Biology, asked by paramitadas01, 1 month ago

Mention the reason of heart sound .

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Answered by vaishalipatne123
0

Explanation:

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Answered by Pranaymaheshwatam
0

Answer:

The reason for heart sound is the contraction and relaxation of auricles and ventricles.

When blood enters right auricle and flows into ventricle when the valves open the auricle relaxes and blood falls into right ventricle producing a dull sound . Now ventricles contract to send blood to lungs via pulmonary artery producing a sharp sound.

This produces a series of sound lup-dup,lup-dup..

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