What Causes S1 Heart Sound 【Desktop Fast】

The primary cause of the S1 heart sound is the —specifically the mitral valve and the tricuspid valve —at the absolute beginning of ventricular systole.

Abnormalities in the S1 heart sound can be associated with various conditions: what causes s1 heart sound

If S1 were purely about valve closure, the sound would stop there. However, the second half of S1 involves the —but not their closure (that causes S2). The primary cause of the S1 heart sound

S1 is not a valve "slamming" shut but rather the sudden deceleration of blood against closed leaflets, causing audible vibrations. the sound would stop there. However