Gluteusnerver

Gluteusnerver is not a standard term in human anatomy. In medical usage, the nerves supplying the gluteal region are primarily the superior gluteal nerve and the inferior gluteal nerve, with additional contributions from other nerves in the nearby plexuses. When encountered in literature, gluteusnerver is generally understood as a reference to the network of nerves that innervate the gluteal muscles rather than a single named nerve.

Anatomy and innervation

The superior gluteal nerve (L4–S1) exits the pelvis above the piriformis and travels laterally between the gluteus medius and gluteus minimus, innervating these muscles and the tensor fasciae latae. It mainly supports hip abduction and medial rotation. The inferior gluteal nerve (L5–S2) exits below the piriformis and innervates the gluteus maximus, enabling hip extension, external rotation, and movements such as standing from a seated position. Additional motor supply to short external rotators comes from nerves associated with the sacral plexus, including the nerve to the quadratus femoris and the nerve to obturator internus. Sensory innervation of the skin in parts of the buttock and posterior thigh is provided by cutaneous nerves, including the posterior femoral cutaneous nerve and surrounding dermal branches.

Clinical relevance

Injury to the superior gluteal nerve can cause weakness of hip abduction and a positive Trendelenburg sign, indicating compromised gluteus medius and minimus function. Injury to the inferior gluteal nerve impairs hip extension due to affected gluteus maximus. Such injuries may result from trauma, surgical procedures, or intramuscular injections in the gluteal region. Nerve blocks targeting the gluteal nerves may be used for anesthesia or analgesia in certain procedures.

Notes

The term gluteusnerver is not widely used in standard anatomy texts; authoritative references refer to the superior and inferior gluteal nerves and their respective motor roles.