Laboratory Identifications and Relations - Gluteal Region

Structural Basis of Medical Practice -- Gross Anatomy

The Pennsylvania State University College of Medicine

Note: This guide is not exhaustive.  The relations are incomplete.  The intent is to highlight observation through dissection.
  1. Ischial spine - relations to: greater sciatic foramen, lesser sciatic foramen, superior gemellus, obturator internus, sacrospinous ligament, pudendal n., internal pudendal a. v.
  2. Ischial tuberosity - relations to: hamstrings, adductor magnus, quadratus femoris, sacrotuberous lig., sciatic n., greater trochanter
  3. Sacrospinous lig. - deep (anteromedial) to pudendal n.
  4. Pudendal n. - leaving pelvis through greater sciatic foramen to enter gluteal region, leaving gluteal region through lesser sciatic foramen to enter ischiorectal fossa.
  5. Superior gluteal a. - superior to piriformis, branches to: gluteus maximus (accompanied by nerve?), gluteus medius, gluteus minimus
  6. Superior gluteal n. - superior to piriformis, between (ant. to and post. to?) gluteus medius and gluteus minimus, branch to tensor fascia lata
  7. Inferior gluteal n. - inferior to piriformis, accompanied by inferior gluteal a.
  8. Gluteus maximus - insertion at gluteal tuberosity and iliotibial tract
  9. Superior gemellus - origin from ischial spine
  10. Intertrochanteric crest - insertions of piriformis, gemelli, obturator internus, quadratus femoris (5 short lateral rotators)
  11. Gluteus medius - insertion onto superior border of greater trochanter
  12. Gluteus minimus - insertion onto superior border of greater trochanter
  13. Sciatic n. - inferior to piriformis, posterior to gemelli, obturator internus tendon, and quadratus femoris, between greater trochanter and ischial tuberosity
  14. Medial circumflex femoral a. - branches superior, inferior and deep (ant) to quadratus femoris, branches superior to adductor magnus
  15. First perforating a. - adductor magnus
  16. Obturator externus - tendon at insertion into the trochanteric fossa
  17. Obturator n. - piercing obturator externus (note: this is tough)
The Structural Basis of Medical Practice
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