pudendal nerve

(redirected from nervus pudendus)

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.

pudendal nerve

one of the branches of the pudendal plexus that arises from the second, third, and fourth sacral nerves; passes between the piriformis and coccygeus; and leaves the pelvis through the greater sciatic foramen. It divides into five branches supplying the external genital structures and the pelvic region. The branches of the pudendal nerve are the inferior rectal nerve, perineal nerve, and dorsal nerve of the penis or of the clitoris. See also pudendal plexus.

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