The obturator internus muscle originates on the medial surface of the obturator membrane, the ischium near the membrane, and the rim of the pubis. It exits the pelvic cavity through the lesser sciatic foramen. The obturator internus is situated partly within the lesser pelvis, and partly at the back of the hip-joint. It functions to help laterally rotate extended thigh and abduct flexed thigh, as well as to steady the femoral head in the acetabulum. [ http://en.wikipedia.org/wiki/Obturator_internus_muscle ]

This is just here as a test because I lose it

Term information

definition
  • The obturator internus muscle originates on the medial surface of the obturator membrane, the ischium near the membrane, and the rim of the pubis. It exits the pelvic cavity through the lesser sciatic foramen. The obturator internus is situated partly within the lesser pelvis, and partly at the back of the hip-joint. It functions to help laterally rotate extended thigh and abduct flexed thigh, as well as to steady the femoral head in the acetabulum.
depicted by
  • http://upload.wikimedia.org/wikipedia/commons/5/55/Posterior_Hip_Muscles_1.PNG
external definition
  • Originates on the entire lateral surface of the pelvic rim. Dorsal fibers insert distally to the dorso-medial surface of the caput femoris and ventral fibers extend around the acetabulum to insert on the tendon of the caput femoris.[AAO]
external ontology notes
  • Definition generalized to accommodate AAO class - 'Originates on the entire lateral surface of the pelvic rim. Dorsal fibers insert distally to the dorso-medial surface of the caput femoris and ventral fibers extend around the acetabulum to insert on the tendon of the caput femoris.' [AAO:0010052]
has exact synonym
  • internal obturator
  • musculus obturator internus
has related synonym
  • internus obturator
  • obturator internus muscle
  • obturatorius internus
  • musculus obturatorius internus
id
  • UBERON:0011048