Gupton Marco, Varacallo Matthew A.
Campbell University
Penn Highlands Healthcare System
The genitofemoral nerve arises from the lumbar plexus (see Genitofemoral Nerve) and supplies sensation to the skin of the anterior scrotal area in males, mons pubis in women, and the upper segment of the anterior thigh in both males and females. While distinct from the femoral nerve, the genitofemoral nerve originates from the upper lumbar segments L1 to L2. The nerve then descends inferiorly, piercing the psoas major muscle before emerging on its anterior surface. The nerve then traverses the retroperitoneum, descending over the anterior surface of the psoas muscle. The nerve continues inferiorly, ultimately separating into two divisions- the femoral and the genital branches. When the genitofemoral nerve reaches the groin area, it enters the deep inguinal ring coursing through the inguinal canal. In men, the nerve continues inferiorly and supplies the skin of the scrotum. In women, the genitofemoral nerve runs alongside the round ligament of the uterus and terminates superior to the mons pubis and labia majora. Further, after crossing the inguinal ligament, the genitofemoral nerve travels adjacent to the external iliac artery, supplying sensation to the anterior upper thigh.
生殖股神经起自腰丛（见生殖股神经），为男性阴囊前部区域、女性耻骨联合部以及男女大腿前部上段的皮肤提供感觉。虽然与股神经不同，但生殖股神经起源于腰上部的L1至L2节段。该神经随后向下走行，穿经腰大肌后在其前表面穿出。然后神经穿过腹膜后间隙，在腰大肌前表面下行。神经继续向下走行，最终分为两支——股支和生殖支。当生殖股神经到达腹股沟区时，它进入腹股沟管并穿过深环。在男性中，神经继续向下走行并支配阴囊皮肤。在女性中，生殖股神经沿子宫圆韧带走行，在耻骨联合和大阴唇上方终止。此外，在穿过腹股沟韧带后，生殖股神经与髂外动脉相邻走行，为大腿前上部提供感觉。
