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Elsevier
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Root of Aorta
Cardiovascular System

Root of Aorta

Radix aortae

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Morphology/Structure

The root of the aorta, or aortic bulb, is the dilated initial portion of the ascending aorta. The aortic bulb must be strong enough to withstand the high pressures produced by left ventricular contraction, and thus, it contains a high degree of elastin within its arterial walls.

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Key Features/Anatomical Relations

The root of the aorta is found at the junction between the outflow tract of the left ventricle and the ascending aorta. The aortic sinuses are situated here.

Function

The root of the aorta provides the supporting structure for the aortic valve leaflets and gives rise to the coronary vessels.

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