Nerve to obturator internus
Template:Short description Script error: No such module "Distinguish". Script error: No such module "Infobox".Template:Template otherTemplate:Main otherScript error: No such module "Check for unknown parameters". The nerve to obturator internus (also known as the obturator internus nerveScript error: No such module "Unsubst".) is a mixed (sensory and motor)[1] nerve providing motor innervation to the obturator internus muscle and gemellus superior muscle,[2][1] and sensory innervation to the hip joint.[1] It is a branch of the sacral plexus. It is one of the group of deep gluteal nerves.[2]
It exits the pelvis through the greater sciatic foramen to innervate the gemellus superior muscle, then re-enters the pelvis to innervate the obturator internus muscle.[2]
Structure
Origin
The nerve to obturator internus is a branch of the lumbosacral plexus.[3] It arises from the anterior divisions of (the anterior rami of[2]) L5-S2.[3][4][2]
Course and relations
It emerges inferior to the piriformis muscle and exits the pelvis through the greater sciatic foramen. It travels round the base of the ischial spine[2] lateral to the internal pudendal artery and nerve, and - while doing so - issues a branch to the gemellus superior, which enters the upper part of the posterior surface of the muscle.Script error: No such module "Unsubst". It then re-enters the pelvis through the lesser sciatic foramen to innervate the obturator internus muscle,[2] piercing the pelvic surface of this muscle.Script error: No such module "Unsubst".
See also
References
Public domain This article incorporates text in the public domain from Template:Wikidatathe 20th edition of Gray's Anatomy (1918) Template:Main other Template:Reflist Template:Lumbosacral plexus Template:Portal bar Template:Authority control
