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Genital branch of genitofemoral nerve : ウィキペディア英語版 | Genital branch of genitofemoral nerve
The genital branch of the genitofemoral nerve, also known as the external spermatic nerve, is a nerve in the abdomen that arises from the genitofemoral nerve. The genital branch supplies the cremaster muscle and anterior scrotal skin in males, and the skin of the mons pubis and labia majora in females. ==Structure== The genital branch of the genitofemoral nerve arises from the ventral primary divisions of L1-L2 spinal nerve roots. It passes outward on the psoas major muscle, and pierces the fascia transversalis, or passes through the deep inguinal ring. It then descends within the spermatic cord. In males, it passes through to the scrotum, where it supplies the cremaster, dartos muscle and gives a few filaments to the skin of the scrotum. In females, it accompanies the round ligament of the uterus, where is terminates as the nerve supplying skin to the labia majora and mons pubis.
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