Aortic valve


Aortic valve
One of the four valves in the heart, this valve is situated at exit of the left ventricle of the heart where the aorta (the largest of all arteries) begins. The aortic valve lets blood from the left ventricle be pumped up (ejected) into the aorta but prevents blood once it is in the aorta from returning to the heart.

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aortic valve n the semilunar valve separating the aorta from the left ventricle that prevents blood from flowing back into the left ventricle

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a valve in the heart, lying between the left ventricle and the aorta. It consists of three pockets, shaped like half-moons, that prevent blood returning to the ventricle from the aorta. See also semilunar valve.

Medical dictionary. 2011.

Look at other dictionaries:

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