semilunar valve

Other forms: semilunar valves

Definitions of semilunar valve
  1. noun
    a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart
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    types:
    aortic valve
    a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart
    pulmonary valve
    a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart
    type of:
    cardiac valve, heart valve
    a valve to control one-way flow of blood
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