heart valve

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Related to Valves of the heart: tricuspid valve, aortic valve, blood, pulmonary vein, pulmonary valve, Oxygenated blood

heart valve

one of the four structures within the heart that prevent backflow of blood by opening and closing with each heartbeat. The valves include two semilunar valves, the aortic and pulmonary; the mitral or bicuspid valve; and the tricuspid valve. The valves permit blood flow in only one direction; any of the valves may become defective, permitting the backflow associated with heart murmurs. Also called cardiac valve. See also heart, mitral valve, semilunar valve, tricuspid valve.
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Heart valves
References in periodicals archive ?
TRICUSPID Valve Dysplasia (TVD) is a heart disease affecting the valves of the heart, which means the heart cannot work at maximum efficiency.
The disorder, called nonrheumatic: heart valve disease, is characterized by inflammation and clogging of the valves of the heart.
The valves of the heart may begin to deteriorate and heart muscles decrease in size, reducing the ability to pump large amounts of blood.