Orthopedic Certified Specialist (OCS) Practice Exam

The gluteus maximus muscle is primarily innervated by the inferior gluteal nerve. This nerve arises from the sacral plexus and specifically innervates the gluteus maximus, which is crucial for movements such as hip extension, external rotation, and stabilization of the pelvis during walking and running.

The inferior gluteal nerve ensures proper muscular function and strength of the gluteus maximus, which plays a significant role in activities that involve powerful movements of the lower extremities. Damage to this nerve can impair the muscle's function, leading to difficulty in actions that require hip extension.

Understanding the innervation of the gluteus maximus is critical for recognizing the implications of nerve injuries or conditions affecting the hip, as well as for developing rehabilitation strategies targeting this large, important muscle.