Nerve: Perineal nerve
Pudendal nerve, its course through the lesser sciatic foramen, and branches, including inferior anal at bottom right.
The superficial branches of the internal pudendal artery. (Perineal nerve visible but not labeled.)
Latin	nervi perineales
Gray's	subject #213 968
Innervates	Transversus perinei superficialis Bulbospongiosus Ischiocavernosus
From	pudendal nerve

The perineal nerve is a nerve arising from the pudendal nerve that supplies the perineum.

Contents 1 Structure 2 Additional images 3 References 4 External links

[edit] Structure

The perineal nerve is the inferior and larger of the two terminal branches of the pudendal nerve, is situated below the internal pudendal artery.

It accompanies the perineal artery and divides into two branches:

• Superficial perineal nerves, becoming posterior scrotal nerves in men ^[1] and Posterior labial nerves in women
• Deep branch of the perineal nerve (also known as "muscular")

[edit] Additional images

Sacral plexus of the right side. (Perineal nerve visible at center right.)

[edit] References

1. ^ Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 2 ed. 2002. Page 263

[edit] External links

• SUNY Labs 41:10-0100 - "The Female Perineum: The Perineal Nerve"
• SUNY Anatomy Image 9174
• SUNY Anatomy Image 9187
• perineal+nerves at eMedicine Dictionary
• Human anatomy at Dartmouth figures/chapter_32/32-3.HTM

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v • d • e Nerves of lower limbs and lower torso: the lumbosacral plexus (L1-Co) (TA A14.2.05-07, GA 9.948) lumbar plexus (L1-L4) iliohypogastric lateral cutaneous branch · anterior cutaneous branch ilioinguinal anterior scrotal ♂/labial ♀ genitofemoral femoral branch/lumboinguinal · genital branch lateral cutaneous of thigh patellar obturator anterior (cutaneous) · posterior · accessory femoral anterior cutaneous branches · saphenous (infrapatellar, medial crural cutaneous) sacral plexus (L4-S4) sciatic common fibular lateral sural cutaneous (sural communicating branch) · deep fibular (lateral terminal branch, medial terminal branch, dorsal digital) · superficial fibular (medial dorsal cutaneous, intermediate dorsal cutaneous, dorsal digital) tibial medial sural cutaneous · medial calcaneal · medial plantar (common plantar digital nerves, proper plantar digital) · lateral plantar (deep branch, superficial branch, common plantar digital, proper plantar digital) sural lateral dorsal cutaneous · lateral calcaneal other muscular: superior gluteal/inferior gluteal · lateral rotator group (to quadratus femoris, to obturator internus, to the piriformis) cutaneous: posterior cutaneous of thigh (inferior cluneal, perineal branches) · perforating cutaneous coccygeal plexus (S4-Co) pudendal: inferior anal · perineal (deep, posterior scrotal ♂/labial ♀) · dorsal of the penis ♂/clitoris ♀ anococcygeal cutaneous innervation of the lower limbs

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