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Medical Definition of Papillary muscles
1. Conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae. (12 Dec 1998)
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1. Conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae. (12 Dec 1998)