Greater sciatic foramen
|Greater sciatic foramen|
|Articulations of pelvis, anterior view, with greater sciatic foramen (labeled in red) and its boundaries.|
|Muscles of the gluteal and posterior femoral regions, piriformis labeled|
|Latin||foramen ischiadicum majus|
|Gray's||subject #80 309|
It is bounded as follows:
- anterolaterally by the greater sciatic notch of the ilium
- posteromedially by the sacrotuberous ligament
- inferiorly by the sacrospinous ligament and the ischial spine
- superiorly by the anterior sacroilliac ligament
The piriformis, which exits the pelvis through the Greater sciatic foramen, occupies most of the foramen.
The following structures also make their exit from the pelvis through the greater sciatic foramen:
|Above the Piriformis||suprapiriform foramen||superior gluteal vessels||superior gluteal nerve|
|Below the Piriformis||infrapiriform foramen||inferior gluteal vessels
internal pudendal vessels
|inferior gluteal nerve
posterior femoral cutaneous nerve
Nerve to obturator internus
Nerve to quadratus femoris
The structures contained within the foramen are represented by a mnemnoic.
Society and culture
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This article uses anatomical terminology; for an overview, see anatomical terminology.
|Wikimedia Commons has media related to Greater sciatic foramen.|
- Yokochi, Chihiro; Rohen, Johannes W.. Color Atlas of Anatomy: A Photographic Study of the Human Body. Hagerstown, MD: Lippincott Williams & Wilkins. p. 482. ISBN 0-7817-9013-1.
- Anatomy photo:41:os-0109 at the SUNY Downstate Medical Center
- Greater_sciatic_foramen at the Duke University Health System's Orthopedics program
- glutealregion at The Anatomy Lesson by Wesley Norman (Georgetown University) (glutealart, glutealner)
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