Fibrous tissue cords that anchor the flaps of the atrioventricular valves to the ventricles are called

Fibrous tissue cords that anchor the flaps of the atrioventricular valves to the ventricles are called

• A. Chordae tendineae
• B. Papillary muscles
• C. Regurgitation
• D. Aorta

Answer: (A)

Chordae tendineae are the fibrous cords that tether the leaflets of the atrioventricular valves to the papillary muscles inside the ventricles. This connection helps keep the valve flaps from prolapsing back into the atria when the ventricles contract, ensuring one-way blood flow and preventing regurgitation. The papillary muscles are the muscular structures that pull on these cords; regurgitation is the problem that occurs if the valves don’t seal properly, and the aorta is unrelated to anchoring AV valve leaflets.

Chordae tendineae are the fibrous cords that tether the leaflets of the atrioventricular valves to the papillary muscles inside the ventricles. This connection helps keep the valve flaps from prolapsing back into the atria when the ventricles contract, ensuring one-way blood flow and preventing regurgitation. The papillary muscles are the muscular structures that pull on these cords; regurgitation is the problem that occurs if the valves don’t seal properly, and the aorta is unrelated to anchoring AV valve leaflets.