Gluteus Maximus
Hip & Pelvis
The largest and heaviest muscle in the body — it's what lets you stand up from a squat and climb stairs.
Function
Extends and laterally rotates hip, upper fibers abduct
Origin
Ilium (behind posterior gluteal line), sacrum, coccyx, sacrotuberous ligament
Insertion
Iliotibial tract and gluteal tuberosity of femur
Innervation
Inferior gluteal nerve (L5-S2)