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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 dorsal root of spinal nerve (or posterior root of spinal nerve) is one of two roots which emerge from the spinal cord. It emerges directly from the spinal cord, and travels to the dorsal root ganglion.Nerve fibres with the ventral root then combine to form a spinal nerve.he root emerges from the posterior part of the spinal cord and travel to the dorsal root ganglion. This contains the cell bodies of the nerve fibres contained in the root. The lateral division of the dorsal root contains lightly myelinated and unmyelinated fibres of small diameter.