papillary muscle

/ˌpæpəˈlɛri ˌmʌsəl/
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Other forms: papillary muscles

Definitions of papillary muscle
  1. noun
    any of several muscles associated with the atrioventricular valves
    “the papillary muscles contract during systole to prevent regurgitation of blood into the atria”
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    type of:
    cardiac muscle, heart muscle
    the muscle tissue of the heart; adapted to continued rhythmic contraction
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