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Gluteus Medius

Origin

Gluteus MediusThe gluteus medius originates on the outer surface of the ilium near its crest.

Insertion

It inserts on the lateral surface of the greater trochanter of the femur.  

Function

The gluteus medius is the major muscle involved in hip joint abduction (thigh abduction). The anterior fibers assist with inward rotation and flexion and the posterior fibers assist with outward rotation and extension.