Genital branch of genitofemoral nerve

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
From	genitofemoral nerve
Dorlands/Elsevier	r_02/12690192

The genital branch of the genitofemoral nerve (external spermatic nerve) 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, and gives a few filaments to the skin of the scrotum.

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

v • d • e Nerves of lower limbs and lower torso: the lumbosacral plexus
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)
sacral plexus (L4-S4)	muscular: superior gluteal/inferior gluteal - to quadratus femoris - to obturator internus - to the piriformis sciatic: tibial (medial sural cutaneous, sural, medial calcaneal, medial plantar, lateral plantar) sciatic: common fibular (lateral sural cutaneous, deep fibular, superficial fibular, medial dorsal cutaneous, intermediate dorsal cutaneous) 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