What structures keep the AV valves from everting under high ventricular pressure?
A)annuli fibrosis
B)interventricular and interatrial septa
C)papillary muscles and chordae tendineae
D)semilunar valves

Question

Quizplus · Accepted Answer

The papillary muscles and chordae tendineae are responsible for securing the AV valves and preventing them from everting or flipping inside out under high ventricular pressure. The papillary muscles contract and pull on the chordae tendineae, which in turn prevent the valve flaps from prolapsing into the atria. The annuli fibrosis, interventricular and interatrial septa, and semilunar valves do not play a direct role in preventing the AV valves from everting.

What Structures Keep the AV Valves from Everting Under High