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Chordae tendineae

Synonyms: chordae, chord-like tendons
German: Chordae tendineae

1 Definition

The chordae tendineae are thin chordae that are fixed to the atrioventricular valves of the human heart at the free ends.

2 Background

The chordae tendineae prevent the return of the flaps in the atrium during systole. They are suspended on the inner heart wall from the so-called papillary muscles. Its main component is collagen type I, III and V. The exact composition of collagen changes throughout life, resulting in diminishing flexibility of the chordae.

3 Clinic

The chordae may rupture as a consequence of myocardial infarction (tendon tear), resulting in valvular insufficiency.

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