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, dartos muscle
From	genitofemoral nerve

The genital branch of the genitofemoral nerve (external spermatic nerve) arises 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.

See also

• Cremasteric reflex

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 As such, some of the information contained within it may be outdated.