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Gluteal Muscles: Difference between revisions
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Revision as of 14:39, 4 April 2022
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Muscle | Origin | Insertion | Action | Nerve Supply |
---|---|---|---|---|
Gluteus Maximus | Gluteal surface of ilium, lumbar fascia, sacrum, sacrotuberous ligament | Greater trochanter of the femur and iliotibial tract | External rotation and extension of the hip joint, supports the extended knee through the iliotibial tract, chief antigravity muscle in sitting and abduction of the hip | Inferior gluteal nerve (L5, S1 and S2 nerve roots) |
Gluteus Medius | Gluteal surface of ilium, under Gluteus Maximus | Greater trochanter of the femur | Abduction of the hip; preventing adduction of the hip. Medial/internal rotation and flexion of the hip (anterior fibers). Extension and Lateral/external rotation of the hip (posterior fibers) | Superior gluteal nerve (L4, L5, S1 nerve roots) |
Gluteus Minimus | From area in between the anterior gluteal line and inferior gluteal line of Gluteal surface ilium, under gluteus medius. | Greater trochanter of the femur | Works in concert with gluteus medius: abduction of the hip; preventing adduction of the hip. Medial rotation of thigh. | superior gluteal nerve (L4, L5, S1 nerve roots) |