| Front | Aortic valve |
|---|---|
| Back | (Semilunar valve) Structure: three "shirt-pocket" cusps in between the left ventricle and the aorta; the coronary arteries arise from two of the cusp's sinuses. Function: 1. Open by flattening during systole to allow blood to flow from the left ventricle into the aorta 2. Close by swelling due to backflow of blood from aorta during diastole (when coronary arteries get their blood) |
Tags: cardiovascular
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