ischium

Key facts

Bone.Name: Ischium of pelvis
Bone.Latin: os ischii
Bone.Image: Pelvic girdle illustration.svg
Bone.Caption: Pelvic girdle
Bone.Image2: Gray341.png
Bone.Caption2: Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. Ischium labeled at bottom left
Bone.Origins: Superior gemellus

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Wikidata facts

Image: Ischium 02 animation.gif

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NCI Thesaurus ID: C32884
Commons category: Ischium

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Article

12 sections

Contents

Structure
Body
Superior ramus
Inferior ramus
Clinical significance
History
Other animals
Dinosaurs
Additional images
See also
References
External links

The ischium (; : ischia) is a paired bone forming the lower and back part of the hip bone.

Situated below the ilium and behind the pubis, it is one of three regions whose fusion creates the coxal bone. The superior portion of this region forms approximately one-third of the acetabulum.