gluteus maximus

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gluteus maximus

(măk′sə-məs)
n. pl. glutei maximi (măk′sə-mī′)
The largest and outermost of the gluteal muscles.

gluteus maximus

The largest of the three flat buttock or rump muscles. The gluteal muscles arise from the back of the pelvis and are inserted into the back of the upper part of the thigh bone (femur). They straighten (extend) the hip joint in rising from a stooping position and in running, climbing and going upstairs.