OBTURATOR NERVE

 

ORIGIN: Lumbar plexus, roots L2-4

COURSE/DISTRIBUTION: Takes origin from the anterior division of lumbar plexus and passes through the belly of psoas major reaching the medial border of that muscle at the pelvic brim. It runs down the pelvis lying on the obturator internus and the obturator vessels to reach the upper part of the obturator foramen. In the foramen, or close to it, it divides into its two terminal branches. The branches are separated by the obturator externus and the adductor brevis.

BRANCHES:  Terminal branches are

bullet Anterior division of obturator nerve
bullet Posterior division of obturator nerve

ROOT VALUE: L2-4.

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Creator: Oluwole Ogunranti


 

 

 

 

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Creator: Oluwole Ogunranti