Purvis, Thomas L. The Making of a Myth: Abraham Lincoln's Family Background in the Perspective of Jacksonian Politics.. Journal of the Illinois State Historical Society 75 (Summer 1982): 148-60.
The gluteal group of muscles consists of 3 muscles: Gluteus Maximus, Gluteus Medius and Gluteus Minimus. Gluteus is Greek for rump. Maximus is the largest of the muscles and Minimus the smallest. The role of the Gluteus maximus is different from the medius and minimus muscles because of their attachment points.
Muscles of Gluteal Region: Muscle: Origin: Insertion: Nerve: Action: gluteus maximus: outer surface of ilium, sacrum, coccyx, sacrotuberous ligament: iliotibial tract and gluteal tuberosity of femur: inferior gluteal nerve: extends & laterally rotates thigh; through iliotibial tract, it extends knee joint: gluteus medius: outer surface of ilium: greater trochanter of femur