Question

What is pulse? Why does hart make lub-dub sound ?​

Answer 1

$\huge\mathcal\red{Answer}$

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

Answer:

Pulse= The regular beating in our body as blood is pushed around it by our heart .we can feel our pulse at wrist ,neck.. etc..

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when our heart do the process of systole and diastole then that time the sound of lub-dub comes out.