Origin
Outer surface of ilium inferior to iliac crest
Insertion
Lateral surface of greater trochanter
Actions
Abducts femur and rotates thigh medially
Nerve
Superior gluteal nerve (L4, L5, S1)
Note
In locomotion, this muscle (along with the Gluteus Minimus) prevents the pelvis from dropping (adduction of thigh) toward the opposite swinging leg.