Nerve To The Piriformis

The nerve to the piriformis is a branch of the sacral plexus that provides innervation to the piriformis muscle. It arises from the ventral rami of the first and second sacral spinal nerves. It enters the anterior surface of the piriformis muscle. This nerve may be double. This nerve is not to be confused with the inferior gluteal nerve, which also arises from posterior divisions of the first and second sacral ventral rami (L5, S1, S2)

Ventral rami of l4-s3 with parts of l4 and s4 spinal nerves form the sacral plexus. it is located on the posterior wall of pelvic cavity (pelvis minor). nervi of the plexus innervate the perineal region, buttocks and the lower limb. the largest nerve of the human body, the sciatic nerve, is the main branch that gives rami to the motor innervation of the muscles of the thigh, the leg, and the foot. common peroneal nerve and its branches innervate some parts of the skin of the foot, the peroneal muscles of the leg, and the dorsal muscles of the foot.