What do the chordae tendineae anchor?
The valves anchored by chordae tendineae are the heart’s atrioventricular (AV) valves. These valves are the mitral valve (bicuspid valve) and the tricuspid valve. The chordae tendineae are fibrous cords that connect the AV valves’ cusps to the ventricles’ papillary muscles. These structures play a crucial role in preventing the backflow of blood from the ventricles to the atria during the cardiac cycle. The chordae tendineae help to keep the valve flaps (cusps) in place and prevent them from prolapsing into the atria when the ventricles contract.
The atrioventricular heart valves (AHVs) regulate the unidirectional flow of blood through the heart chambers by the cyclic opening and closing of soft tissue leaflets. These leaflets are supported in their functions by the chordae tendineae, which attach to the papillary muscles.
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