Nerve to obturator internus

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Nerve to obturator internus
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Plan of sacral plexus and pudendal plexus (nerve to the obturator internus and gemellus superior labeled at lower left)
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Nerves of the right leg seen from behind (nerve to the obturator internus labeled at upper left)
Details
FromSacral plexus
InnervatesObturator internus and gemellus superior muscles
Identifiers
LatinNervus musculi obturatorii interni
TA98A14.2.07.028
TA26550
FMA78711
Anatomical terms of neuroanatomy

The nerve to obturator internus, also known as the obturator internus nerve, is a nerve that innervates the obturator internus and gemellus superior muscles.

Structure[]

The nerve to obturator internus originates in the lumbosacral plexus.[1] It arises from the ventral divisions of the fifth lumbar and first and second sacral nerves.[1][2]

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, re-enters the pelvis through the lesser sciatic foramen, and pierces the pelvic surface of the obturator internus.

See also[]

References[]

Public domain This article incorporates text in the public domain from page 957 of the 20th edition of Gray's Anatomy (1918)

  1. ^ Jump up to: a b Warner, Tyler; Tubbs, R. Shane (2021-01-01), Tubbs, R. Shane; Iwanaga, Joe; Loukas, Marios; Dumont, Aaron S. (eds.), "Chapter 7 - The Nerve to Obturator Internus", Surgical Anatomy of the Sacral Plexus and Its Branches, Elsevier, pp. 31–34, ISBN 978-0-323-77602-8, retrieved 2021-02-06
  2. ^ Chiva, Luis M.; Magrina, Javier (2018-01-01). "Chapter 2 - Abdominal and Pelvic Anatomy". Abdominal and Pelvic Anatomy. Elsevier. pp. 3–49. doi:10.1016/b978-0-323-42878-1.00002-x. ISBN 978-0-323-42878-1.


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