abdominal aorta

Abdominal part of aorta: the distal part of the descending aorta, which is the continuation of the thoracic part and gives rise to the inferior phrenic, lumbar, median sacral, superior and inferior mesenteric, middle suprarenal, renal, and testicular or ovarian arteries, and celiac trunk[BTO]. The abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, it is a direct continuation of descending aorta(of the thorax). [WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the abdominal aorta is

Abdominal part of aorta: the distal part of the descending aorta, which is the continuation of the thoracic part and gives rise to the inferior phrenic, lumbar, median sacral, superior and inferior mesenteric, middle suprarenal, renal, and testicular or ovarian arteries, and celiac trunk[BTO]. The abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, it is a direct continuation of descending aorta(of the thorax). [WP,unvetted]. The atlas records it as a organ at the organ scale in the human body.

Where the abdominal aorta is

It sits within the cardiovascular system. Positioned deliberately as part of this species body plan.

What the abdominal aorta connects to

The atlas records 24 typed relationships for it, across 7 kinds of connection. part of descending aorta.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the abdominal aorta. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as abdominal part of aorta, descending abdominal aorta, pars abdominalis aortae and aorta abdominalis. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001516, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: descending aorta.
• A kind of: section of aorta.
• Connected to: descending thoracic aorta and ovarian artery.
• contains: celiac artery, common iliac artery, inferior mesenteric artery, inferior phrenic artery, lumbar artery and median sacral artery, and 4 more.
• branching part of: celiac artery, common iliac artery, inferior phrenic artery, lumbar artery, median sacral artery and middle suprarenal artery, and 2 more.
• contributes to morphology of: descending aorta.
• overlaps: abdomen.

Questions

Where is the abdominal aorta?

It sits within the cardiovascular system. Positioned deliberately as part of this species body plan.

What does the abdominal aorta connect to?

Part of: descending aorta.

Is the abdominal aorta the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.