
The aortic valve has three flaps that work like a one-way gate. When the heart pumps, the aortic valve opens to allow oxygen-rich blood to flow from the left ventricle into the aorta. When the heart rests between beats, the aortic valve closes to keep blood from flowing backward into the heart.
| By | Healthwise Staff |
| Primary Medical Reviewer | Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology |
| Specialist Medical Reviewer | Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology |
| Last Revised | November 2, 2011 |