- Posterior cutaneous nerve of thigh
Name = PAGENAME
Latin = nervus cutaneus femoris posterior
GraySubject = 213
GrayPage = 959
Caption = Cross-section through the middle of the
thigh. (Posterior femoral cutaneous nerve labeled at bottom.)
Caption2 = Nerves of the right lower extremity. Posterior view. (Post. fem. cutaneus labeled at upper left.)
inferior clunial nerves, perineal branches
DorlandsPre = n_05
DorlandsSuf = 12565565
The posterior cutaneous nerve of the thigh (also called the posterior femoral cutaneous nerve) provides innervation to the
skinof the posterior surface of the thighand leg, as well as to the skin of the perineum.
The posterior cutaneous nerve of the thigh is a nerve from the
sacral plexus. It arises partly from the dorsal divisions of the first and second, and from the ventral divisions of the second and third sacral nerves, and issues from the pelvis through the greater sciatic foramenbelow the piriformismuscle.
It then descends beneath the
gluteus maximuswith the inferior gluteal artery, and runs down the back of the thigh beneath the fascia lata, and over the long head of the biceps femoristo the back of the knee; here it pierces the deep fasciaand accompanies the small saphenous veinto about the middle of the back of the leg, its terminal twigs communicating with the sural nerve.
Its branches are all cutaneous, and are distributed to the gluteal region, the perineum, and the back of the thigh and leg.
inferior clunial nerves(or gluteal branches), three or four in number, turn upward around the lower border of the gluteus maximus, and supply the skin covering the lower and lateral part of that muscle.
* The perineal branches are distributed to the skin at the upper and medial side of the
* The main part to the back of the thigh and leg consists of numerous filaments derived from both sides of the nerve, and distributed to the skin covering the back and medial side of the thigh, the
popliteal fossa, and the upper part of the back of the leg.
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