Obturator internus muscle

The obturator internus muscle is a triangular-shaped muscle located deep within the pelvis. It stretches between the hip bone and femur. The obturator internus is located inferior to the gluteal muscles, and it provides lateral (external) rotation of the thigh. Together with the superior gemellus muscle and inferior gemellus muscle, it forms a muscle complex known as the triceps coxae muscles.

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