How does valvular aortic stenosis affect the S2 heart sound? S2 is heard more crisply, as the A2 component is affected by degenerating sclerotic tissue. S2 is heard less crisply, as the A2 component is affected by degenerating sclerotic tissue. S2 is heard more crisply, as the P2 component is affected by degenerating sclerotic tissue. S2 is heard less crisply, as the P2 component is affected by degenerating sclerotic tissue. ) Aortic stenosis causes splitting of the S2 heart sound, which is heard more easily.

Question

How does valvular aortic stenosis affect the S2 heart sound? S2 is heard more crisply, as the A2 component is affected by degenerating sclerotic tissue. S2 is heard less crisply, as the A2 component is affected by degenerating sclerotic tissue. S2 is heard more crisply, as the P2 component is affected by degenerating sclerotic tissue. S2 is heard less crisply, as the P2 component is affected by degenerating sclerotic tissue. ) Aortic stenosis causes splitting of the S2 heart sound, which is heard more easily.

Answer 1

Valvular aortic stenosis affects the S2 heart sound by causing the A2 component to be delayed due to the obstruction of blood flow through the stenotic aortic valve. This delay can lead to a less crisp S2 sound because the closure of the aortic valve (A2) is affected by the degenerating sclerotic tissue. Therefore, the correct answer is:**S2 is heard less crisply, as the A2 component is affected by degenerating sclerotic tissue.**

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