Question

Explain heart sounds.

Answer 1

Heart sounds are noises generated by the closing and opening of the heart valves. In a healthy individual, there are two normal heart sounds called lub and dub. Lub is the first heart sound. It is associated with the closure of the tricuspid and bicuspid valves at the beginning of systole. The second heart sound dub is associated with the closure of the semilunar valves at the beginning of diastole.

These sounds provide important information about the condition and working of the heart.

Hope this will help you..... ✌

Answer 2

Explaination of sounds of heart is provided below :

1. LUBB

It is the 1st sound that the heart produces. This sound is produced only when the tricuspid as well as the bicuspid valves closes. They close during the systole of the ventricles.

2. DUB

This is next or the 2nd sound produced by heart. When the semilunar valves closes, then this sound is produced. These valves closes at the starting of the diastole of the ventricles.