transversus abdominis muscle

The lateral abdominal wall muscle that is deep to the internal oblique. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the transversus abdominis muscle is

The lateral abdominal wall muscle that is deep to the internal oblique. The atlas records it as a muscle at the organ scale in the human body.

Where the transversus abdominis muscle is

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

What the transversus abdominis muscle connects to

The atlas records 4 typed relationships for it, across 4 kinds of connection. part of anterior abdominal wall.

Supply and innervation

Innervation: intercostal nerve.

Also called

Also recorded as musculus transversus abdominis, transverse abdominal, transversis abdominus, transversus abdominis, transversalis and transversalis muscle, and 6 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001221, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: anterior abdominal wall.
• A kind of: anterior abdominal wall muscle.
• deep to: abdominal internal oblique muscle.
• Innervated by: intercostal nerve.

Questions

Where is the transversus abdominis muscle?

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

What does the transversus abdominis muscle connect to?

Part of: anterior abdominal wall.

Is the transversus abdominis muscle 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.