Nerve: Genital branch of genitofemoral nerve
Deep and superficial dissection of the lumbar plexus. (External spermatic branch of genitofemoral labeled at bottom right.)
Latin	ramus genitalis nervi genitofemoralis
Gray's	subject #212 953
Innervates	cremaster, dartos muscle
From	genitofemoral nerve

The genital branch of the genitofemoral nerve (external spermatic nerve) arieses from the ventral primary divisions of L1 and L2 spinal nerve roots, passes outward on the Psoas major, and pierces the fascia transversalis, or passes through the deep inguinal ring; it then descends behind the spermatic cord to the scrotum, supplies the Cremaster, dartos muscle and gives a few filaments to the skin of the scrotum.

In the female, it accompanies the round ligament of the uterus, and is lost upon it.

[edit] See also

• Cremasteric reflex

[edit] External links

• SUNY Labs 36:07-0305 - "Inguinal Region, Scrotum and Testes: Layers of the Spermatic Cord"

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 As such, some of the information contained within it may be outdated.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