The Abdominal Aorta
Aorta | Aortic Valve | Aortic Root | Ascending Aorta | Aortic Arch | Descending Aorta | Abdominal Aorta
The abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, it is a direct continuation of the descending aorta.
The abdominal aorta begins at the level of the diaphragm, crossing it via the aortic hiatus, technically behind the diaphragm, at the vertebral level of T12. It travels down the posterior wall of the abdomen, anterior to the vertebral column. It thus follows the curvature of the lumbar vertebrae, that is, convex anteriorly. The peak of this convexity is at the level of the third lumbar vertebra (L3).
The abdominal aorta supplies blood to much of the abdominal cavity. including the intestines, kidneys, reproductive organs, and legs.
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