The chordae tendinae of the AV valves are anchored to the ..... of the ventricles.

CARDIOVASCULAR PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

The chordae tendinae of the AV valves are anchored to the ____ of the ventricles.

A	papillary muscles
B	interatrial septum
C	pectinate muscles
D	trabeculae carnae
E	interventricular septum

Explanation:

Detailed explanation-1: -The AV valves are anchored to the wall of the ventricle by chordae tendineae (heartstrings), small tendons that prevent backflow by stopping the valve leaflets from inverting. The chordae tendineae are inelastic and attached at one end to the papillary muscles and at the other end to the valve cusps.

Detailed explanation-2: -The papillary muscles are muscles located in the ventricles of the heart. They attach to the cusps of the atrioventricular valves (also known as the mitral and tricuspid valves) via the chordae tendineae and contract to prevent inversion or prolapse of these valves on systole (or ventricular contraction).

Detailed explanation-3: -To prevent this, the cusps of the AV valves are attached to little tendons known as chordae tendinae. These are attached to papillary muscles in the ventricles.

There is 1 question to complete.