Iliac crest
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| Bone: Iliac crest | |
|---|---|
 | |
| Pelvic girdle. | |
 | |
| Overview of Ilium as largest bone of the pelvis. | |
| Latin | crista iliaca |
| Gray's | subject #57 234 |
| Dorlands / Elsevier | c_62/12266672 |
The crest of the ilium (or iliac crest) is convex in its general outline but is sinuously curved, being concave inward in front, concave outward behind.
Anatomy
It is thinner at the center than at the extremities, and ends in the anterior and posterior superior iliac spines.
The surface of the crest is broad, and divided into external and internal lips, and an intermediate line.
About 5 cm behind the anterior superior iliac spine there is a prominent tubercle on the outer lip.
To the external lip are attached the Tensor fasciæ latæ, Obliquus externus abdominis, and Latissimus dorsi, and along its whole length the fascia lata; to the intermediate line the Obliquus internus abdominis.
To the internal lip, the fascia iliaca, the Transversus abdominis, Quadratus lumborum, Sacrospinalis, and Iliacus.
Clinical significance
The iliac crest has a large amount of red bone marrow, and thus it is the site of bone marrow harvests (from both sides) to collect the stem cells used in bone marrow transplantation.
Additional images
Iliac crest.PNG
Muscles connecting the upper extremity to the vertebral column. Left iliac crest is labeled in red. |
 Plan of ossification of the hip bone. |
 The Obliquus internus abdominis. |
 Muscles of the iliac and anterior femoral regions. |
 The relations of the kidneys from behind. |
 Iliac crest labeled at center right. |
See also
External links
- SUNY Figs 13:02-01 - "Superficial muscles of the gluteal region and posterior thigh."
- SUNY Labs 35:os-0104 - "Anterior Abdominal Wall: Osteology and Surface Anatomy "
- Atlas of anatomy at UMich back_bone30 - "The Back, Posterior View" (#4)
- Diagram at emedx.com
- Diagram at nih.gov
- Iliac crest bone grafting
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 As such, some of the information contained herein may be outdated.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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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
