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Gemellus inferior

The gemellus inferior (also inferior gemellus, inferior gemellus muscle, gemellus inferior muscle, latin: musculus gemellus inferior)  is a muscle of the posterior muscle group of the pelvic girdle.

Origin

The gemellus inferior originates from the ischial tuberosity.

Insertion

The gemellus inferior inserts on the trochanteric fossa of the femur.

Action

The main function of the inferior gemellus is the external rotation of the femur.

Innervation

The gemellus inferior is innervated by the muscular branches of the sacral plexus.