Wikipedia:
greater sciatic foramen
| Greater sciatic foramen | |
|---|---|
 |
|
| Articulations of pelvis, anterior view, with greater sciatic foramen (labeled in red) and its boundaries. | |
| Latin | f. ischiadicum majus |
| Gray's | subject #80 309 |
| Dorlands/Elsevier | f_12/12373169 |
The greater sciatic foramen is a major foramen of the pelvis.
Boundaries
It is bounded as follows:
- anterolaterally by the greater sciatic notch of the illium
- posteromedially by the sacrotuberous ligament
- inferiorly by the sacrospinous ligament and the ischial spine
- superiorly by the anterior sacroilliac ligament
Contents
It is partially filled up, in the recent state, by the Piriformis which leaves the pelvis through it.
The following structures make their exit from the pelvis through the greater sciatic foramen:
| Location | Vessels | Nerves |
| Above the Piriformis | superior gluteal vessels | superior gluteal nerve |
| Below the Piriformis | inferior gluteal vessels internal pudendal vessels |
inferior gluteal nerve pudendal nerve sciatic nerve posterior femoral cutaneous nerve Nerve to obturator internus Nerve to quadratus femoris |
Additional images
 Right hip bone. External surface. |
External links
- SUNY Labs 41:os-0109
- Duke Orthopedics greater_sciatic_foramen
- Norman/Georgetown glutealregion (glutealart, glutealner)
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 As such, some of the information contained herein may be outdated.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.
| Bones of pelvis/pelvic cavity | |
|---|---|
| General | sacrum, coccyx, hip bone |
| Ilium | Arcuate line - Wing - gluteal lines (Posterior, Anterior, Inferior) - Fossa - Tuberosity - Crest - iliac spines (Anterior superior - Anterior inferior - Posterior superior - Posterior inferior) |
| Ischium | Body (Ischial spine, Lesser sciatic notch) - Superior ramus (Tuberosity of the ischium) - Inferior ramus |
| Pubis | Superior ramus (Pubic tubercle, Pubic crest, Obturator crest) - Inferior ramus (Pectineal line) |
| Compound | Obturator foramen - Acetabulum - Acetabular notch - Greater sciatic notch - Iliopectineal eminence - Ischiopubic ramus - Pubic arch - Lesser pelvis (Pelvic inlet, Pelvic brim, Pelvic outlet) - Greater pelvis - Greater sciatic foramen - Lesser sciatic foramen |
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