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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. [1] 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.
A diagram showing the arterial blood supply to the stomach and the spleen. ... abdominal aorta. color: red. common hepatic artery. color: red. right gastric artery.
The aorta (/ eɪ ˈ ɔːr t ə / ay-OR-tə; pl.: aortas or aortae) is the main and largest artery in the human body, originating from the left ventricle of the heart, branching upwards immediately after, and extending down to the abdomen, where it splits at the aortic bifurcation into two smaller arteries (the common iliac arteries).
The descending aorta anatomically consists of two portions or segments, the thoracic and the abdominal aorta, in correspondence with the two great cavities of the trunk in which it is situated. Within the abdomen, the descending aorta branches into the two common iliac arteries which serve the pelvis and eventually legs.
The thoracic aorta is a continuation of the descending aorta and becomes the abdominal aorta when it passes through the diaphragm. The initial part of the aorta, the ascending aorta, rises out of the left ventricle, from which it is separated by the aortic valve.
Note that these three anterior branches of the abdominal aorta are distinct and cannot substitute for one another, although there are limited connections between their terminal branches.) The celiac artery is an essential source of blood, since the interconnections with the other major arteries of the gut are not sufficient to sustain adequate ...
Abdominal aorta: Celiac a: L gastric a: Common hepatic a: Splenic a: SMA: Renal as: IMA: L common iliac a: R common iliac a: External iliac a: Internal iliac a: Femoral a: Profunda femoris a: Popliteal a: Peroneal a: Anterior tibial a: Posterior tibial a: Dorsalis pedis a
4 Abdominal aorta. Toggle Abdominal aorta subsection. 4.1 inferior phrenic. 4.2 celiac. 4.3 superior mesenteric. 4.4 middle suprarenal. 4.5 renal. 4.5.1 Anterior and ...