heart valves and functions
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mitral valve
A valve in the heart that guards the opening between the left atrium and the left ventricle; prevents the blood in the ventricle from returning to the atrium. Alternative name is bicuspid valve.
pulmonary valve
Prevents blood from flowing back into the right ventricle after it has entered the pulmonary artery.
aortic valve
The semilunar valve separating the aorta from the left ventricle that prevents blood from flowing back into the left ventricle.
tricuspid valve
a structure between the right atrium and right ventricle that opens and closes to permit the flow of a fluid in only one direction.
