| 释义 |
semilunar valve
semilunar valven. 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.semilunar valve n (Anatomy) anatomy either of two crescent-shaped valves, one in the aorta and one in the pulmonary artery, that prevent regurgitation of blood into the heart sem′ilu′nar valve′
n. either of two heart valves situated at the ventricular openings to the aorta and the pulmonary artery, each containing three crescent-shaped flaps that prevent the reverse flow of blood. Thesaurus| Noun | 1. | semilunar valve - a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heartaortic valve - a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heartpulmonary valve - a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heartcardiac valve, heart valve - a valve to control one-way flow of blood |
semilunar valve
semilunar valve[¦sem·i′lü·nər ′valv] (anatomy) Either of two tricuspid valves in the heart, one at the orifice of the pulmonary artery and the other at the orifice of the aorta. semilunar valve
sem·i·lu·nar valve [TA] a heart valve composed of a set of three semilunar cusps (valvules); hence both the aortic and pulmonary valves are semilunar valves. Synonym(s): valvula semilunaris [TA]semilunar valven. 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.sem·i·lu·nar valve (sem'ē-lū'năr valv) [TA] A heart valve composed of a set of three semilunar cusps (valvules); hence, both the aortic and pulmonary valves are semilunar valves. semilunar valve either of the heart valves - (a) at the orifice of the pulmonary artery, or
- (b) at the orifice of the aorta. Each consists of three flaps which ensure that blood flows in only one direction.
semilunar valve
Related to semilunar valve: Pulmonary semilunar valve, Aortic semilunar valveWords related to semilunar valvenoun a heart valve with cusps shaped like half-moonsRelated Words- aortic valve
- pulmonary valve
- cardiac valve
- heart valve
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