gluteus maximus(redirected from glutei maximi)
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gluteus maximusThe 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.
gluteus maximusfan-shaped muscle of gluteal (buttock) region
origin external surface of ilium, back of sacrum and coccyx, and sacrotuberous ligament
insertion gluteal tuberosity of femur and iliotibial tract, via a narrow aponeurosis
nerve supply inferior gluteal nerve
action hip joint extension (e.g. at end of toe off, when climbing stairs or lifting heavy weights); knee joint extension (via insertion into iliotibial tract); stabilization of pelvis and thigh (acting reciprocally with tensor fascia lata)