What does a whistling murmur heard between the first and second heart sounds indicate
A)a stenotic AV valve
B)an insufficient AV valve
C)a stenotic aortic or pulmonary semilunar valve
D)an insufficient aortic or pulmonary semilunar valve

Question

Quizplus · Accepted Answer

A stenotic AV valve (atrioventricular valve, which includes the mitral and tricuspid valves) can cause a whistling murmur between the first and second heart sounds due to the narrowed valve obstructing blood flow during ventricular systole.

What Does a Whistling Murmur Heard Between the First and Second