Obturator externus
Hips & glutes
Deep muscle — it lies under other muscles. X-ray makes the muscles over it see-through.
- Origin
- Outer surface of the obturator membrane and the surrounding pubis and ischium
- Insertion
- Trochanteric fossa of the femur
- Action
- Laterally rotates the hip
- Nerve supply
- Obturator nerve (L3–L4)
A flat, triangular muscle on the outer front of the pelvis, the deepest of the group. It reaches the back of the femur by passing under the hip joint.
Obturator externus anatomy page →