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


    semilunar valve meaning & definition 1 of semilunar valve.


  • A semilunar valve is a type of heart valve that has half-moon like flaps or cusps. It prevents the backflow of blood from the arteries to the ventricles of the heart during diastole. There are two semilunar valves in the heart, the aortic valve and the pulmonary valve. The aortic valve regulates blood flow from the left ventricle to the aorta, and the pulmonary valve controls blood flow from the right ventricle to the pulmonary artery.

    semilunar valve meaning & definition 2 of semilunar valve.

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