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Papillary Muscle

Papillary Muscle

Paperback

Medical Reference

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ISBN10: 6133102489
ISBN13: 9786133102484
Publisher: Vdm Verlag Dr Mller Ag & Co Kg
Pages: 80
Weight: 0.28
Height: 0.19 Width: 9.02 Depth: 6.00
Language: English
High Quality Content by WIKIPEDIA articles! In anatomy, the papillary muscles of the heart attach to the cusps of the atrioventricular valves and hence serve to limit the movements of the mitral and tricuspid valves. These muscles contract to tighten the chordae tendineae, which in turn prevent inversion. This occurs in response to pressure gradients. Instead they brace the valves against the high pressure, preventing regurgitation of ventricular blood back into the atrial cavities. Ere are five total papillary muscles in the heart, three in the right ventricle and two in the left. The anteior, posterior, and septal papillary muscles of the right ventricle each attach via chordae tendineae to the tricuspid valve. The anterior and posterior papillary muscles of the left ventricle attach via chordae tendineae to the mitral valve.

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