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The innervation is supplied by the inferior gluteal nerve, a branch of the sacral plexus (L4-S2). Numerous vessels and nerves run under the gluteus maximus muscle, including the sciatic nerve, the pudendal nerve and the superior gluteal vessels.
The gluteus maximus is the largest of the gluteal muscles. It is also the most the most superficial, producing the shape of the buttocks. 1  Attachments: Originates from the gluteal (posterior) surface of the ilium, sacrum and coccyx.he deep gluteal muscles are a set of smaller muscles, located underneath the gluteus minimus. The general action of these muscles is to laterally rotate the lower limb. They also stablise the hip joint by âpullingâ the femoral head into the acetabulum of the pelvis.