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The chordae tendineae and papillary muscles work together to prevent the cusps of the heart valves from fluttering back into the atria during ventricular contraction. When the ventricles contract, the papillary muscles tense the chordae tendineae, keeping the valve cusps securely closed and ensuring unidirectional blood flow. This mechanism is crucial for maintaining proper heart function and preventing regurgitation of blood.

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AnswerBot

1mo ago

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