semilunar valve

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  • noun

Words related to semilunar valve

a heart valve with cusps shaped like half-moons

References in periodicals archive ?
These pressures, created by the contraction of cardiac muscle in the ventricle walls, control the opening and closing of the semilunar valves and thus the movement of blood from the left and right ventricles into the aorta and pulmonary trunk.
Failure of fusion of the outflow tract cushions results in formation of a single large trunk with a common ventriculoarterial junction and a single semilunar valve, overriding a VSD [22].
The three tubercles form the semilunar valve cusps.
A study of autopsy specimens of normal hearts concluded that, in both genders, all indexed mean valve circumferences progressively increased throughout adult life, and this trend was greater for the semilunar valves than the atrioventricular valves.