Genitofemoral Nerve: Key to Sensation and Muscle Function in Genital Region
The genitofemoral nerve, a branch of the lumbar plexus, plays a crucial role in sensation and muscle function in both men and women. It splits into the genital ramus and the femoral ramus after passing through the psoas major muscle.
In women, the genital ramus supplies sensory branches to the labia majora, providing feeling in this area. Meanwhile, in men, this branch is part of the spermatic cord and triggers the cremasteric reflex, causing the testes to elevate and lower. This reflex was extensively studied by Henry Gray, a renowned researcher in the field.
The femoral branch of the genitofemoral nerve offers sensory perception in the skin below the inguinal ligament in both sexes.
The genitofemoral nerve, with its genital and femoral rami, contributes significantly to sensation and muscle action in the genital and inguinal regions. Its functions were notably explored by Henry Gray.