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Also known as iliac bone

uppermost and largest part of the hip bone, and appears in most vertebrates (including mammals and birds), but not bony fish or snakes

Key facts

Latin
os ilium
Mesh
D007085
Ta98
A02.5.01.101

via Wikipedia infobox

Wikidata facts

Subclass of
bone
Part of
hip bone
Image
Ilium 02 animation.gif
Show 3 more facts
topic's main category
Category:Ilium (bone)
Commons category
Ilium
NCI Thesaurus ID
C32765
Sources (5)

via Wikidata · CC0

~7 min read

Encyclopedic overview

The ilium (/ˈɪliəm/) (pl.: ilia) is the uppermost and largest region of the coxal bone, and appears in most vertebrates including mammals and birds, but not bony fish. All reptiles have an ilium except snakes, with the exception of some snake species which have a tiny bone considered to be an ilium.

The ilium of the human is divisible into two parts, the body and the wing; the separation is indicated on the top surface by a curved line, the arcuate line, and on the external surface by the margin of the acetabulum.

Excerpted from Wikipedia’s “ilium” article, available under the CC BY-SA 4.0 licence.