Muscle Atlas

Gluteus Maximus

Origin: Posterior aspect of dorsal ilium posterior to posterior gluteal line, posterior superior iliac crest, posterior inferior aspect of sacrum and coccyx, and sacrotuberous ligament
Insertion: Primarily in fascia lata at the iliotibial band; also into the gluteal tuberosity on posterior femoral surface
Action: Major extensor of hip joint, assists in laterally rotating the thigh; upper and middle third section of the muscle are abductors
Innervation: Inferior gluteal nerve (L5, S1, S2)
Arterial Supply: Inferior and superior gluteal arteries and the first perforating branch of the profunda femoris artery

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