Inferior Gluteal Nerve, Lateral View

Description

Arising from the sacral plexus (ventral rami of L5 to S2), the inferior gluteal nerve courses laterally out of the pelvis through the greater sciatic foramen inferior to the piriformis, then runs posterior to the hip joint toward the deep surface of gluteus maximus. From a lateral buttock perspective, the greater sciatic notch, posterior ilium, sacrum, and proximal femur frame its exit point, with the nerve lying medial to the greater trochanter and superior to the posterior compartment of the thigh. Nearby relationships typically include the sciatic nerve and posterior femoral cutaneous nerve descending inferiorly, and the inferior gluteal vessels traveling in parallel as neurovascular companions. Orientation is clear. Landmarks are familiar. This is the view you want when teaching the infrapiriform space and the practical anatomy of the posterior approach to the hip. Inferior gluteal nerve injury, whether from deep intramuscular injection placed too medial or inferior, penetrating trauma, or surgical dissection near the greater sciatic foramen, produces weakness of hip extension and impaired rising from a seated position due to gluteus maximus denervation. Clear depiction of its course relative to the piriformis and sciatic nerve also supports discussion of deep gluteal pain syndromes and the differential around posterior pelvic neurovascular entrapment, where small positional differences matter. Use this artwork in gross anatomy lab manuals, pelvic neuroanatomy lectures, and operative anatomy references that cover posterior hip exposure, gluteal injections, and sciatic region safety zones; it also fits radiology teaching that correlates CT or MRI of the greater sciatic notch with sacral plexus branching. Anatomical accuracy verified by SciePro's Medical Advisory Board.