ilium

Paired endochondral bone that is the dorsal-most of the pelvic bones, offering attachment areas for gluteal muscles on its main surface [PHENOSCAPE:ad]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the ilium is

Paired endochondral bone that is the dorsal-most of the pelvic bones, offering attachment areas for gluteal muscles on its main surface [PHENOSCAPE:ad]. The atlas records it as a bone at the organ scale in the human body.

Where the ilium is

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

What the ilium connects to

The atlas records 22 typed relationships for it, across 8 kinds of connection. part of innominate bone, material anatomical entity and pelvic girdle skeleton.

Supply and innervation

Arterial supply: superior gluteal artery.

Also called

Also recorded as iliac bone, ilium bone, os iliacum, os ilii, os ilium and illium. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001273, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: innominate bone, material anatomical entity and pelvic girdle skeleton.
• A kind of: anatomical structure, endochondral bone, pelvic girdle bone/zone, pelvic region element and skeletal element.
• contains: acetabular part of hip bone, body of ilium, iliac blade, iliac crest, iliac fossa and iliac spine.
• originates from: gluteus maximus, gluteus medius, gluteus minimus and sartorius muscle.
• composed of: bone tissue.
• contributes to morphology of: pelvic girdle bone/zone.
• connects: sacro-iliac joint.
• Supplied by: superior gluteal artery.

Questions

Where is the ilium?

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

What does the ilium connect to?

Part of: innominate bone, material anatomical entity and pelvic girdle skeleton.

Is the ilium 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.