ILIOINGUINAL NERVE

 

ORIGIN: L1 nerve 

COURSE/DISTRIBUTION: It emerges from the L1 nerve smaller than the iliohypogastric nerve from the lateral border of the psoas major. It passes across the quadratus lumborum to reach the transversus abdominis which it perforates after which it pierces the internal oblique muscle of abdomen to reach the inguinal canal where it lies below the spermatic cord. It tranverses the inguinal canal to reach the superficial inguinal ring. Being a cutaneous nerve, it supplies the skin over the root of the penis and the upper part of scrotum in the male; the root of clitoris and upper part of labia majora in the female. It also supplies the skin of the upper medial aspect of the thigh and the mons pubis.

BRANCHES. Cutaneous branches only

ROOT VALUE: L1.

 

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Creator: Oluwole Ogunranti


 

 

 

 

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Creator: Oluwole Ogunranti