pudendal nerve


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pu·den·dal nerve

[TA]
branch of the sacral plexus formed by fibers from the ventral primary rami of the second, third, and fourth sacral spinal nerves; it exits the pelvis via the greater sciatic foramen, passes posterior to the sacrospinous ligament, and accompanies the internal pudendal artery, into the perineum via the lesser sciatic foramen; it gives off inferior rectal nerves, then courses through the pudendal canal in the lateral wall of the ischiorectal fossa, terminating as the dorsal nerve of the penis or of the clitoris.

pu·den·dal nerve

(pyū-den'dăl nĕrv) [TA]
Formed by fibers from the ventral primary rami of the second, third, and fourth sacral spinal nerves; it exits the pelvis through the greater sciatic foramen, passes posterior to the sacrospinous ligament, and accompanies the internal pudendal artery into the perineum through the lesser sciatic foramen; it gives off inferior rectal nerves, then courses through the pudendal canal in the lateral wall of the ischiorectal fossa, terminating as the dorsal nerve of the penis or of the clitoris.
Synonym(s): nervus pudendus [TA] .

pudendal nerve

A mixed nerve composed of axons from spinal nerves S2–S4. It follows the sciatic nerve out of the pelvis but immediately reenters through the lesser sciatic foramen. It innervates most of the structures of the perineum: it is sensory to the genitals and motor to the perineal muscles, the external urethral sphincter, and the external anal sphincter.
See also: nerve
References in periodicals archive ?
Palpation of the ischial spine or pudendal nerve precipitates a tingling sensation with paresthesia or pain commonly known as Tinel's sign.
Update in pudendal nerve entrapment syndrome: an approach anatomicsurgical, diagnostic and therapeutic.
It is hard to know exactly when to evaluate a patient for postpartum sexual dysfunction, given the impact of pudendal nerve latency, fatigue, and breastfeeding.
He saw another urologist who explained that the infection and cycling caused inflammation of the pudendal nerve. At that point he was prescribed naproxen, 750 mg/day.
The other reason for the lateralization of the post is to protect the pudendal nerve and its perineal branch, which passes just medial to the ischial tuberosity.
(A) Intercostal nerves are rerouted and connected to the paralysis-affected pudendal nerve (serves pelvic region), restoring bowel-and-bladder function.
Surgery is also an option in rare cases of pudendal nerve entrapment.
A bladder control system currently under study involves implantation of a pudendal nerve stimulator following a posterior rhizotomy.
Clitoral and anal reflex should be also tested.[17,18] The internal pelvic floor, the obturator internus muscle and the pudendal nerve are assessed for irritation by intravaginally palpating in the direction of 3 and 9 o'clock.
[18] focused on estrogen recovering function on pudendal nerve crush, omitting vaginal innervation.
As a result, in case of young adult patients with significantly displaced or old fracture, a larger force and prolonged traction are required to reduce the fracture, leading to stretch injury of the foot, pudendal nerve trauma, perineal ulcers, peroneal nerve palsy, and even compartment syndrome.[sup][10],[11] Second, skin traction is performed during fracture reduction procedure by the traction table, which only provides lower traction force of 5–10 kg.