Gluteus Maximus

Written by Oliver Jones

Last updated October 19, 2022 • 3 Revisions •

The gluteus maximus is a muscle of the gluteal region in the lower limb. It the largest and most superficial gluteal muscle.

  • Attachments: Originates from the gluteal (posterior) surface of the ilium, sacrum and coccyx. The fibres slope across the buttock at a 45 degree angle and insert onto the iliotibial tract and gluteal tuberosity of the femur.
  • Actions: Thigh extension. It also assists with lateral rotation of the lower limb.
  • Innervation: Inferior gluteal nerve.
  • Blood Supply: Superior and inferior gluteal arteries

Fig 1
The superficial muscles of the gluteal region. The gluteus maximus and medius have been partly removed.

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