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The muscle is supplied by the inferior gluteal nerve which arises from the dorsal branches of the ventral rami of the fifth (L5), the first and second sacral nerves. [2]The lumbosacral trunk, which is made up of L5 and a small branch of L4, effectively connects the lumbar and sacral plexuses. [3]
Lumboinguinal nerve (green) and Ilioinguinal nerve (purple). In modern texts, these two regions are often considered to be innervated by the genitofemoral nerve. Medial cluneal nerves (pink) - labeled as "post. division of sacral" Inferior cluneal nerves (pink region, not designated with its own section)
In human anatomy, the sacral plexus is a nerve plexus which provides motor and sensory nerves for the posterior thigh, most of the lower leg and foot, and part of the pelvis. It is part of the lumbosacral plexus and emerges from the lumbar vertebrae and sacral vertebrae (L4-S4). [ 1 ]
The notch holds the piriformis, the superior gluteal vein and artery, and the superior gluteal nerve; the inferior gluteal vein and artery and the inferior gluteal nerve; the sciatic and posterior femoral cutaneous nerves; the internal pudendal artery and veins, and the nerves to the internal obturator and quadratus femoris muscles.
The superior gluteal nerve is a mixed (motor and sensory) nerve of the sacral plexus that originates in the pelvis. It provides motor innervation to the gluteus medius , gluteus minimus , tensor fasciae latae , and piriformis muscles; it also has a cutaneous branch.
The inferior clunial nerves (also gluteal branches of posterior femoral cutaneous nerve) are branches of the posterior cutaneous nerve of the thigh that innervate the skin of the lower part of the buttocks. [1] [2] They pass inferior to the inferior border of the gluteus maximus muscle. [2]
The superior and inferior gemelli are supplied by the inferior gluteal artery. Nerve supply to the superior gemellus is from the supply to the internal obturator – L5, S1, and S2. Nerve supply to the superior gemellus is from the supply to the internal obturator – L5, S1, and S2.
Gluteal surface of ilium, lumbar fascia, sacrum, sacrotuberous ligament: Insertion: Gluteal tuberosity of the femur and iliotibial tract: Artery: Superior and inferior gluteal arteries: Nerve: Inferior gluteal nerve (L5, S1 and S2 nerve roots) Actions