Nerve to obturator internus

Nerve to obturator internus
Plan of sacral plexus and pudendal plexus (nerve to the obturator internus and gemellus superior labeled at lower left)
Nerves of the right leg seen from behind (nerve to the obturator internus labeled at upper left)
Details
From	Sacral plexus
Innervates	Obturator internus and gemellus superior muscles
Identifiers
Latin	Nervus musculi obturatorii interni
Dorlands /Elsevier	n_05/12566195
TA	A14.2.07.028
FMA	78711
Anatomical terms of neuroanatomy []

The nerve to obturator internus is a nerve that innervates the obturator internus and gemellus superior muscles.

The nerve to obturator internus originates in the sacral plexus. It arises from the ventral divisions of the fifth lumbar and first and second sacral nerves.

It leaves the pelvis through the greater sciatic foramen below the piriformis muscle, and gives off the branch to the gemellus superior, which enters the upper part of the posterior surface of the muscle.

It then crosses the ischial spine, reenters the pelvis through the lesser sciatic foramen, and pierces the pelvic surface of the obturator internus.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)