Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun papillary_muscle

1 sense of papillary muscle

Sense 1
papillary muscle -- (any of several muscles associated with the atrioventricular valves; "the papillary muscles contract during systole to prevent regurgitation of blood into the atria")
       => cardiac muscle, heart muscle -- (the muscle tissue of the heart; adapted to continued rhythmic contraction)