abdominal aorta (redirected from Aorta, abdominal)

aorta /aor·ta/ (a-or´tah) pl. aor´tae, aortas   [L.] the great artery arising from the left ventricle, being the main trunk from which the systemic arterial system proceeds.aor´tic

Aorta, arising from the left ventricle, ascending, arching, then descending through the thorax to the abdomen, where it divides into the common iliac arteries.

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abdominal aorta  the distal part of the descending aorta, below the diaphragm; it is continuous with the thoracic aorta.

overriding aorta  a congenital anomaly occurring in tetralogy of Fallot, in which the aorta is displaced to the right so that it appears to arise from both ventricles and straddles the ventricular septal defect.

thoracic aorta  the proximal portion of the descending aorta; it is continuous with the abdominal aorta.

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abdominal aorta,

the portion of the descending aorta that passes from the aortic hiatus of the diaphragm into the abdomen, descending ventral to the vertebral column and ending at the fourth lumbar vertebra, where it divides into the two common iliac arteries. It supplies blood to abdominal structures such as the testes, ovaries, kidneys, and stomach. Its branches are the celiac, superior mesenteric, inferior mesenteric, middle suprarenal, renal, testicular, ovarian, inferior phrenic, lumbar, middle sacral, and common iliac arteries. See also descending aorta. Compare thoracic aorta.

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aorta

pl. aortae, aortas [L.] the great artery arising from the left ventricle, being the main trunk from which the systemic arterial system proceeds. See Table 9. See also aortic.

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abdominal aorta

the part of the descending aorta within the abdomen.

ascending aorta

the first part of the aorta which passes dorsally and cranially.

descending aorta

the aorta after it turns caudally at the aortic arch.

overriding aorta

see overriding aorta.

supravalvular aorta

the portion of aorta immediately above the aortic valve.

terminal aorta

the segment of the aorta immediately before it divides into the iliac arteries.

thoracic aorta

the part of the descending aorta within the thorax.

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abdominal aorta

Anatomy The portion of the aorta that begins below the diaphragm, extends to the bifurcation of the iliac arteries, and supplies blood to the abdominal viscera, pelvic organs and legs Branches Inferior phrenic, lumbar, celiac trunk, superior mesenteric, inferior mesenteric, middle adrenal, renal, testicular and ovarian arteries