Nerve to obturator internus

Nerve to obturator internus
Nerve: 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 lower extremity Posterior view. (Nerve to the Obturator internus labeled at upper left.)
Latin nervus musculi obturatorii interni
Gray's subject #213 957
From sacral plexus

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

Course

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.

See also

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • nerve to obturator internus — and gemellus superior nervus musculi obturatorii interni …   Medical dictionary

  • Obturator internus muscle — The obturator internus and nearby muscles …   Wikipedia

  • Fascia of the Obturator internus — Infobox Anatomy Name = PAGENAME Latin = f. obturatoria GraySubject = 119 GrayPage = 420 Caption = Coronal section of pelvis, showing arrangement of fasciæ. Viewed from behind. Caption2 = Left Levator ani from within. (Obturator fascia visible at… …   Wikipedia

  • Obturator nerve — Nerve: Obturator nerve Structures surrounding right hip joint. (Obturator nerve labeled at upper right.) Nerves of the …   Wikipedia

  • Obturator fascia — Coronal section of pelvis, showing arrangement of fasciæ. Viewed from behind. Left L …   Wikipedia

  • Obturator externus muscle — The obturator externus and nearby hip muscles (posterior view) …   Wikipedia

  • Nerve to quadratus femoris — Nerve: Nerve to quadratus femoris Plan of sacral plexus and pudendal plexus. Latin nervus musculi quadratus femoris Gray s …   Wikipedia

  • Obturator canal — The relations of the femoral and abdominal inguinal rings, seen from within the abdomen. Right side. (Obturator canal not labeled, but visible at bottom center.) …   Wikipedia

  • Nerve to the Piriformis — Nerve: Nerve to the Piriformis Plan of sacral plexus and pudendal plexus. (Label to piriformis is at center left.) …   Wikipedia

  • Obturator foramen — Bone: Obturator foramen Pelvis. Obturator foramen is 7 …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”