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

Question

Quizplus · Accepted Answer

Closure of the atrioventricular valve occurs when the pressure inside the ventricle exceeds the pressure inside the atrium, preventing backflow of blood into the atrium during ventricular contraction.

Closure of the Atrioventricular Valve Occurs When