atrioventricular valve

Thesaurus

Noun

1.

atrioventricular valve - either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atriumpapillary muscle - any of several muscles associated with the atrioventricular valves; "the papillary muscles contract during systole to prevent regurgitation of blood into the atria"bicuspid valve, left atrioventricular valve, mitral valve - valve with two cusps; situated between the left atrium and the left ventricleright atrioventricular valve, tricuspid valve - valve with three cusps; situated between the right atrium and the right ventricle; allows blood to pass from atrium to ventricle and closes to prevent backflow when the ventricle contractscardiac valve, heart valve - a valve to control one-way flow of blood