Ischial spine
Template:Short description Script error: No such module "Infobox".Template:Template otherTemplate:Main otherScript error: No such module "Check for unknown parameters". The ischial spine is part of the posterior border of the body of the ischium bone of the pelvis. It is a thin and pointed triangular eminence, more or less elongated in different subjects.
Structure
| Part | Attachment |
|---|---|
| external surface | gemellus superior muscle[1] |
| internal surface | coccygeus muscle,[2] levator ani muscle, pelvic fascia |
| pointed extremity | sacrospinous ligament |
The pudendal nerve travels close to the ischial spine.[3]
Clinical significance
The ischial spine can serve as a landmark in pudendal anesthesia, as the pudendal nerve lies close to the ischial spine.[3][4]
Additional images
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Right hip bone, external surface, showing the greater and lesser sciatic notches, separated by the ischial spine
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Articulations of pelvis. Anterior view.
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Pelvis. Anterior view.
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Animation showing the ischial spine (highlighted in red)
References
Public domain This article incorporates text in the public domain from Template:Wikidatathe 20th edition of Gray's Anatomy (1918) Template:Main other Template:ReflistTemplate:Pelvis Template:Portal bar Template:Authority control
