Muscular system
Obturator internus
- System
- Muscular system
- Regions
- Lower limb
- Side
- Left and right
- Part of
- Deep gluteal muscles
DescriptionUnreviewed
The internal obturator muscle or 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 internal obturator is situated partly within the lesser pelvis, and partly at the back of the hip-joint.
It functions to help laterally rotate femur with hip extension and abduct femur with hip flexion, as well as to steady the femoral head in the acetabulum.
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Source: Wikipedia · Text licence: CC BY-SA 3.0 · This text comes from the source data and has not been reviewed by a person yet.
Muscle attachments
Origin
Names
- Latin
- Obturator internus
- English
- Obturator internus
- French
- Obturateur interne
- Spanish
- Obturador interno
- Portuguese
- Obturador interno