Closure of the atrioventricular valve occurs when
A)the papillary muscle contracts.
B)the valve contracts.
C)the atrium contracts.
D)pressure inside the ventricle is less than pressure inside the atrium.
E)pressure inside the ventricle is greater than pressure inside the atrium.

Question

Quizplus · Accepted Answer

The atrioventricular valve closes when the pressure inside the ventricle becomes greater than the pressure inside the atrium, preventing backflow of blood into the atrium.

Closure of the Atrioventricular Valve Occurs When