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Perineal nerve

The perineal nerve is a nerve of the pelvis. It arises from the pudendal nerve in the pudendal canal. It gives superficial branches to the skin, and a deep branch to muscles. It supplies the skin and muscles of the perineum. Its latency is tested with electrodes.

Structure
The perineal nerve is a branch of the pudendal nerve. It lies below the internal pudendal artery. It accompanies the perineal artery. It passes through the pudendal canal for around 2 or 3 cm. and the posterior labial nerves in women. == Function ==
Function
The perineal nerve supplies the skin and muscles of the perineum. The superficial branches supply sensation to the perineum, and the scrotum in men or the labia majora in women. The deep branch supplies superficial transverse perineal muscle, the bulbospongiosus muscle, the ischiocavernosus muscle, the bulb of penis, levator ani, and the external anal sphincter. == Clinical significance ==
Clinical significance
The latency of the perineal nerve can be measured with electrodes. It is used to test nerve function. == Additional images ==
Additional images
File:Gray837.png|Sacral plexus of the right side. (Perineal nerve visible at center right.) == References ==
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