trunk

Organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region. Includes the sacrum when present. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the trunk is

Organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region. Includes the sacrum when present. The atlas records it as a region at the region scale in the human body.

Where the trunk is

It sits in the trunk. Positioned deliberately as part of this species body plan.

What the trunk connects to

The atlas records 142 typed relationships for it, across 6 kinds of connection. part of body proper.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the trunk. 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 thoracolumbar region, torso, trunk region and Rumpf. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002100, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: body proper.
• A kind of: organism subdivision.
• contains: abdominal fascia, anterior cecal artery, anterior inferior pancreaticoduodenal artery, anterior intercostal artery, anterior superior pancreaticoduodenal artery and ascending branch of left colic artery, and 130 more.
• develops into: nephron and remnant of urachus.
• left of: left gastric vein.
• right of: right gastric vein.

Questions

Where is the trunk?

It sits in the trunk. Positioned deliberately as part of this species body plan.

What does the trunk connect to?

Part of: body proper.

Is the trunk 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.