Obturator externus muscle (3D)

This video tutorial explores the obturator externus muscle, focusing on its anatomy, innervation, and functions. The muscle is part of the external rotators of the thigh and is innervated by the obturator nerve. Key functions include external rotation, abduction of the flexed thigh, and stabilization of the hip joint. The tutorial provides a comprehensive understanding of the muscle's role in movement and stability, concluding with a summary of its primary functions.

Which muscle group does the obturator externus belong to?

• Adductors of the thigh

• Extensors of the thigh

• External rotators of the thigh

• Flexors of the thigh

Where does the obturator externus muscle originate from?

• Lateral surface of the femur

• Anterior surface of the obturator membrane

• Medial surface of the tibia

• Posterior surface of the pelvis

Which nerve innervates the obturator externus muscle?

• Obturator nerve

• Femoral nerve

• Sciatic nerve

• Tibial nerve

What is the primary function of the obturator externus muscle?

• Flexion of the thigh

• External rotation of the thigh

• Extension of the thigh

• Internal rotation of the thigh

In which yoga pose is the abduction of the flexed thigh by the obturator externus muscle commonly practiced?

• Downward Dog

• Warrior Pose

• Tree Pose

• Cobra Pose