Inferior Gluteal Artery, Posterior View

Description

Arising from the anterior division of the internal iliac artery, the inferior gluteal artery is traced as it exits the pelvis through the greater sciatic foramen, inferior to the piriformis, to enter the deep gluteal region. From this posterior perspective, it courses lateral and inferior beneath gluteus maximus, in close relationship to the sacral plexus and the sciatic nerve as they converge toward the posterior thigh. Bony landmarks include the posterior ilium and sacrum, with the greater sciatic notch framing the neurovascular corridor. Understanding this pathway matters when you are teaching or operating in the deep gluteal space, where the artery lies in the same crowded interval used for posterior approaches to the hip and for exposure around the sciatic nerve. Bleeding from the inferior gluteal artery can complicate gluteal trauma and posterior pelvic fractures, and it is a recognized source of hematoma or pseudoaneurysm after misplaced intramuscular injections placed too medial or too inferior. Small space. Little margin for error. For anatomy education, this view supports teaching the greater sciatic foramen as a transit zone and helps clarify the inferior gluteal artery’s relationship to piriformis, the sacral plexus, and the sciatic nerve in gross anatomy, regional anatomy, and surgical anatomy courses. It also fits well in orthopedic and trauma references discussing posterior hip exposure, pelvic hemorrhage patterns, and safe landmarks for gluteal injection technique. Anatomical accuracy verified by SciePro's Medical Advisory Board.