... of the passive impulse for cruelty (masochism) is found in the painful irritation of the gluteal region which is familiar to all educators since the confessions of J.J. Rousseau. This has justly caused them to demand that physical punishment, which usually concerns this part of the body, should be withheld from all children in whom the libido might be forced ... — Three Contributions to the Theory of Sex • Sigmund Freud
... of two large arteries that conduct blood to the pelvis and the legs. External iliac artery—the outer branch of an iliac artery that becomes the femoral artery. Hypogastric artery—internal iliac artery; the inner branch of an iliac artery that conducts blood to the gluteal region. ... — Surgical Anatomy • Joseph Maclise