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semilunar valve

DEFINITIONS OF: semilunar valve

1

n a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart

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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