Biology, asked by devika1351, 6 months ago

what is the reason for the sound Lub Dub in the heart beat​

Answers

Answered by ItsUDIT
14

Explanation:

Normal heart sounds can be characterized by a "lub" "dub" that occurs with a heart beat. The first heart sound (lub) occurs when the atrioventricular (AV) valves close and the second heart sound (dub) is heard when the semilunar valves close...

HOPE THIS WILL HELP YOU...

Answered by gokulbiologylover
1

The first heart sound (lub) occurs when the atrioventricular (AV) valves close and the second heart sound (dub) is heard when the semilunar valves close.

it is simply said to be opening or closing of aritoventricular valves

Similar questions