Question $40$

How does valvular aortic stenosis affect the S $2$ heart sound?

S $2$ is heard more crisply, as the A $2$ component is affected by degenerating sclerotic tissue.

S $2$ is heard less crisply, as the A $2$ component is affected by degenerating sclerotic tissue.

S$2$ is heard more crisply, as the P$2$ component is affected by degenerating sclerotic tissue.

S $2$ is heard less crisply, as the P $2$ component is affected by degenerating sclerotic tissue.

Aortic stenosis causes splitting of the S$2$ heart sound, which is heard more easily.