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The inferior gluteal nerve is the main motor neuron that innervates the gluteus maximus muscle. It is responsible for the movement of the gluteus maximus in activities requiring the hip to extend the thigh, such as climbing stairs.
The inferior gluteal nerve is a branch of the posterior division of the sacral plexus. More specifically, this nerve arises from the posterior divisions of the anterior (ventral) rami of spinal nerves L5, S1 and S2.
The inferior gluteal nerve is a branch of the sciatic plexus. It initially lies anterior to the piriformis muscle in the pelvis. The inferior gluteal nerve typically exits the pelvis via the greater sciatic foramen, coursing underneath the piriformis muscle before dividing into several branches.
The inferior gluteal nerve is also a motor branch of the sacral plexus, arising from the posterior divisions of the L5, S1, and S2 anterior roots. It courses inferiorly and exits the pelvic cavity via the greater sciatic foramen while passing inferiorly to the piriformis muscle.
The inferior gluteal nerve is a motor nerve responsible for the motor activity of the gluteus maximus muscle. The muscle is primarily responsible for the extension of the trunk from a forward bending position and extension of the hip from sitting to standing and during stair climbing. [2]
Inferior Gluteal Nerve. The inferior gluteal nerve leaves the pelvis via the greater sciatic foramen, entering the gluteal region inferiorly to the piriformis muscle. It is accompanied by the inferior gluteal artery and vein for much of its course. Roots: L5, S1, S2. Motor Functions: Innervates gluteus maximus. Sensory Functions: None.
The inferior gluteal nerve leaves the pelvic cavity through the greater sciatic foramen, inferior to piriformis muscle, and enters the gluteal region to supply gluteus maximus, the largest muscle in the gluteal region.
The inferior gluteal nerve is a motor nerve that arises from the sacral plexus, specifically from the ventral rami of the L5, S1, and S2 spinal nerves. It is primarily responsible for innervating the gluteus maximus muscle.
The inferior gluteal nerve receives branches predominantly from the S1 nerve root and travels inferior to the piriformis muscle to innervate the different heads of the gluteus maximus muscle. This muscle is a major hip extensor and is important in maintaining stance.
The inferior gluteal nerve (IGN) is a component of the sacral plexus and innervates the gluteus maximus muscle. The primary role of this muscle is in extension and lateral rotation of the hip. This chapter is dedicated to the detailed anatomy of the IGN and its pathology.