semilunar valve

listen to the pronunciation of semilunar valve
Английский Язык - Английский Язык
Either of two valves, one located at the opening of the aorta and the other at the opening of the pulmonary artery, each consisting of three crescent-shaped cusps and serving to prevent blood from flowing back into the ventricles
a heart valve with half-moon-shaped cusps; prevents blood from flowing back into the heart
semilunar valve
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