Contents
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:
| Location | Name | Vessels | Nerves |
| 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 pudendal nerve sciatic nerve posterior femoral cutaneous nerve Nerve to obturator internus Nerve to quadratus femoris |
mnemonics: structures passing through greater sciatic foramen below pyriformis (pin and pins) p;posterior cutaneous nerve of thigh i:inferior gluteal nerve n: nerve to quadratos femoris p:pudendal nerve i:internal pudendal vessel n;nerve to obturator internus s;sciatic nerve
structures passing through lesser sciatic foramen:(pint) p:pudendal nerve i:internal pudendal vessels n:nerve to obturator internus t:tendon of obturator internus
Read more about this topic: Greater Sciatic Foramen
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