
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 (of the thorax). ==Structure== 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...
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http://en.wikipedia.org/wiki/Abdominal_aorta

(from the article `aorta`) In the abdominal cavity the aorta gives off a number of branches, which form an extensive network supplying blood to the stomach, liver, pancreas, ...
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http://www.britannica.com/eb/a-z/a/4

<anatomy> The largest arterial conduit below the diaphragm. This term refers to the portion of the aorta below the diaphragm to the bifurcation into the right and left common iliac arteries. It supplies blood to the abdominal viscera, pelvic organs and lower extremities. ... (20 Jun 2000) ...
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http://www.encyclo.co.uk/local/20973

The continuation into the abdomen of the thoracic aorta, which divides into the two common iliac arteries.
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http://www.encyclo.co.uk/local/21447

Type: Term Definitions: 1. the part of the descending aorta that is distal (inferior) to the aortic hiatus of the diaphragm, which occurs at the T-12 vertebral level. Synonyms: pars abdominalis aortae, aorta abdominalis, abdominal part of descending aorta
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http://www.medilexicon.com/medicaldictionary.php?t=5250

Abdominal aorta: The abdominal aorta is the final section of the aorta, the largest artery in the body. It is a continuation of the thoracic aorta. It begins at the diaphragm, and runs down to the point where it ends (by splitting in two to form the common iliac arteries). The abdominal aorta supplies oxygenated blood to all of the abdominal and pe...
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http://www.medterms.com/script/main/art.asp?articlekey=8631

[
n] - a branch of the descending aorta
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http://www.webdictionary.co.uk/definition.php?query=abdominal%20aorta
noun a branch of the descending aorta
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https://www.encyclo.co.uk/local/20974

The portion of the aorta in the abdomen.
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https://www.texasheart.org/heart-health/heart-information-center/topics/a-z
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