arch of aorta

The convex portion of the aorta between the ascending and descending parts of the aorta; branches from it include the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery; the brachiocephalic trunk further splits to form the right subclavian artery and the right common carotid artery. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the arch of aorta is

The convex portion of the aorta between the ascending and descending parts of the aorta; branches from it include the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery; the brachiocephalic trunk further splits to form the right subclavian artery and the right common carotid artery. The atlas records it as a organ at the organ scale in the human body.

Where the arch of aorta is

It sits in the thorax and trunk, within the cardiovascular system. Positioned deliberately as part of this species body plan.

What the arch of aorta connects to

The atlas records 11 typed relationships for it, across 5 kinds of connection. part of thoracic aorta.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the arch of 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 arcus aortae, aortic arch and thoracic aorta. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001508, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: thoracic aorta.
• A kind of: thoracic aorta.
• Connected to: ascending aorta, brachiocephalic artery, common carotid artery plus branches, descending aorta, left common carotid artery plus branches and left subclavian artery, and 1 more.
• contributes to morphology of: thoracic aorta.
• contains: descending trunk of arch of aorta.

Questions

Where is the arch of aorta?

It sits in the thorax and trunk, within the cardiovascular system. Positioned deliberately as part of this species body plan.

What does the arch of aorta connect to?

Part of: thoracic aorta.

Is the arch of 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.