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Ilium (bone)
From Wikipedia, the free encyclopedia
| Bone: Ilium of pelvis | ||
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| Overview of Ilium as largest bone of the pelvis. | ||
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| Capsule of hip-joint (distended). Posterior aspect. (Ilium labeled at top.) | ||
| Latin | os ilii | |
| Gray's | subject #57 236 | |
| MeSH | Ilium | |
| Dorlands/Elsevier | p_10/12623123 | |
The ilium of the pelvis is divisible into two parts, the body and the ala; the separation is indicated on the internal surface by a curved line, the arcuate line, and on the external surface by the margin of the acetabulum. The name comes from the Latin, meaning "groin" or "flank." [1]
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The body enters into the formation of the acetabulum, of which it forms rather less than two-fifths.
Its external surface is partly articular, partly non-articular; the articular segment forms part of the lunate surface of the acetabulum, the non-articular portion contributes to the acetabular fossa.
The internal surface of the body is part of the wall of the lesser pelvis and gives origin to some fibers of the Obturator internus.
Below, it is continuous with the pelvic surfaces of the ischium and pubis, only a faint line indicating the place of union.
- Further information: Wing of ilium
 Pelvic girdle |
 Male pelvis. |
 Right hip bone. Internal surface. |
 Right hip bone. External surface. (Body of ilium is the top of the blue circle in the center, and the wing of the ilium is the portion above that. Crest of ilium is labeled at top.) |
 Plan of ossification of the hip bone. |
 Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. |
 Pelvis (French labels) |
 Pelvis |
- ^ Taber, Clarence Wilbur; Venes, Donald (2005). Taber's cyclopedic medical dictionary. Philadelphia: F.A. Davis. ISBN 0-8036-1207-9.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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This musculoskeletal system article is a stub. You can help Wikipedia by expanding it. |
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| General | sacrum, coccyx, hip bone |
| Ilium | Body (Arcuate line) Wing: gluteal lines (Posterior, Anterior, Inferior) - Fossa - iliac spines (Anterior superior, Anterior inferior, Posterior superior, Posterior inferior) - Crest - Tuberosity |
| Ischium | Body (Ischial spine, Lesser sciatic notch) - Superior ramus (Tuberosity of the ischium) - Inferior ramus |
| Pubis | Body - Superior ramus (Pubic tubercle, Pubic crest, Obturator crest) - Inferior ramus (Pectineal line) |
| Compound | Acetabulum (Acetabular notch) - Iliopubic eminence/Iliopectineal line - Linea terminalis - Ischiopubic ramus/Pubic arch
Obturator foramen - Greater sciatic foramen/Greater sciatic notch - Lesser sciatic foramen Lesser pelvis (Pelvic inlet, Pelvic brim, Pelvic outlet) - Greater pelvis |