Question

what are the heart sounds ?how are they produced?

Answer 1

The “ lub” is the first heart sound, commonly termed S1, and is caused by turbulence caused by the closure of mitral and tricuspid valves at the start of systole. The second sound,” dub” or S2, is caused by the closure of aortic and pulmonic valves, marking the end of systole.

Answer 2

Hey,
Heart sounds are LUB - DUB. The first heart sound is produced by the closing of the mistral and the tricuspid valve leaflets.The second heart sound is produced by the closing of the aortic and the pulmonic valve leaflets.

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