Question

What cause the sound of heart beat?

Answer 1

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❀A normal heartbeat has two sounds, a lub (sometimes called S1) and a dub (S2). These sounds are caused by the closing of valves inside your heart.

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Answer 2

What cause the sound of heart beat?

A normal heartbeat has two sounds, a lub (sometimes called S1) and a dub (S2). These sounds are caused by the closing of valves inside your heart.