| Bone: Ischial spine | |
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| Capsule of hip-joint (distended). Posterior aspect. (Spine of ischium labeled at upper left.) | |
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| Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Spine of ischium labeled at center left.) | |
| Latin | s. ischialis s. ischiadica |
| Gray's | subject #57 235 |
From the posterior border of the body of the Ischium there extends backward a thin and pointed triangular eminence, the ischial spine, more or less elongated in different subjects.
It can serve as a landmark in pudendal anesthesia.[1]
Contents |
Surfaces
| external surface | gives attachment to the Gemellus superior |
| internal surface | gives attachment to the Coccygeus, Levator ani, and the pelvic fascia |
| pointed extremity | the sacrospinous ligament is attached. |
Additional images
 Right hip bone, external surface, showing the greater and lesser sciatic notches, separated by the ischial spine. |
 Articulations of pelvis. Anterior view. |
References
- ^ "Clinical Case - Perineum & External Genitalia". http://anatomy.med.umich.edu/reproductive_system/perineum_case.html. Retrieved on 2009-05-27.
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 As such, some of the information contained herein may be outdated.
External links
- SUNY Labs 41:os-0105 - "The Female Perineum: Osteology"
- SUNY Labs 44:st-0724 - "The Male Pelvis"
- Ischial+spine at eMedicine Dictionary
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