iliacus muscle

The iliacus is a flat, triangular muscle, which fills the iliac fossa. [WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the iliacus muscle is

The iliacus is a flat, triangular muscle, which fills the iliac fossa. [WP,unvetted]. The atlas records it as a muscle at the organ scale in the human body.

Where the iliacus muscle is

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

What the iliacus muscle connects to

The atlas records 7 typed relationships for it, across 7 kinds of connection. a kind of muscle of pelvic girdle.

Supply and innervation

Arterial supply: superior gluteal artery. Innervation: femoral nerve.

Also called

Also recorded as anterior muscle of pelvic girdle, iliacus, iliacus muscle and musculus iliacus. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001369, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: muscle of pelvic girdle.
• antagonist of: gluteus maximus.
• Innervated by: femoral nerve.
• inserts into: lesser trochanter.
• originates from: iliac fossa.
• contains: skeletal muscle tissue of iliacus.
• Supplied by: superior gluteal artery.

Questions

Where is the iliacus muscle?

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

What does the iliacus muscle connect to?

A kind of: muscle of pelvic girdle.

Is the iliacus 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.