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.
Gluteus maximus: unique to humans â Friday factoid The gluteal muscles are found on the posterior side of the pelvis; i.e. the butt (snigger). All mammals, including humans, have three of them layered one on top of the other. Together they work to lift your leg out to the side, rotate the thigh and straighten the leg.