The document summarizes the osteology of the upper extremity. It describes the bones that make up the shoulder, arm, forearm, wrist and hand. The key bones are the clavicle, scapula, humerus, radius, ulna, carpals, metacarpals and phalanges. The bones of the wrist (carpals) and hand are described in detail, including the bones that make up the palm (metacarpals) and fingers/thumb (phalanges).