Genital branch of genitofemoral nerve
Encyclopedia
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.
Genitofemoral nerve
In human anatomy, the genitofemoral nerve originates from the upper part of the lumbar plexus of spinal nerves. Its roots are L1 and L2 .The genitofemoral nerve is responsible for both the efferent and afferent limbs of the cremasteric reflex...
(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
Deep inguinal ring
The deep inguinal ring is the entrance to the inguinal canal.-Location:...
; it then descends behind the spermatic cord
Spermatic cord
The spermatic cord is the name given to the cord-like structure in males formed by the ductus deferens and surrounding tissue that run from the abdomen down to each testicle.-Contents of spermatic cord:...
to the scrotum
Scrotum
In some male mammals the scrotum is a dual-chambered protuberance of skin and muscle containing the testicles and divided by a septum. It is an extension of the perineum, and is located between the penis and anus. In humans and some other mammals, the base of the scrotum becomes covered with curly...
, supplies the Cremaster
Cremaster
Cremaster is a term derived from the Greek verb κρεμάννυμι = "I hang ", not from Latin cremare = "to burn". It may refer to:* The cremaster muscle, part of genital anatomy in human males** Cremaster reflex, a reflex in the muscle...
, dartos muscle and gives a few filaments to the skin of the scrotum.
In the female
Female
Female is the sex of an organism, or a part of an organism, which produces non-mobile ova .- Defining characteristics :The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male...
, it accompanies the round ligament of the uterus, and is lost upon it.