Medical Definition of Obturator internus
Origin, pelvic surface of obturator membrane and margin of obturator foramen; insertion, passes out of pelvis through lesser sciatic foramen, in so doing, making a 90° turn to insert into the medial surface of greater trochanter; action, rotates thigh laterally; nerve supply, nerve to obturator internus (sacral plexus).
Synonym: musculus obturator internus, internal obturator muscle.
(05 Mar 2000)
Obturator Internus Pictures
Click the following link to bring up a new window with an automated collection of images related to the term: Obturator Internus Images
Lexicographical Neighbors of Obturator Internus
Other Resources Relating to: Obturator internus