Obturator internus muscle (3D)

The video tutorial explores the obturator internus muscle, detailing its anatomy, origin, insertion, and functions. It highlights the muscle's role in external rotation and abduction of the thigh at the hip joint, as well as its contribution to hip joint stability. The tutorial also discusses the nerve innervation of the obturator internus and its importance in walking and other movements.

Explain the role of the obturator internus in external rotation of the thigh.

What are the three main functions of the obturator internus muscle?