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The **upper limb** is divided into three main areas: the arm (the region between the shoulder and elbow joint), the forearm (the region between the elbow and wrist joints) and the hand (distal to the wrist). The upper limb contains 30 bones in total. The humerus is the single bone of the upper arm, and the ulna (medially) and radius (laterally) are the paired bones of the forearm. The base of the hand contains eight carpal bones; the palm of the hand is formed by five metacarpal bones. The fingers and thumb collectively contain 14 bones, each referred to as a phalanx bone. *LICENSES AND ATTRIBUTIONS CC licensed content, Shared previously, Bones of the Upper Limb, Authored by: OpenStax College. License: CC BY: Attribution. License Terms: Download for free at http://cnx.org/contents/HYsYjkmm@5/Bones-of-the-Upper-Limb* ## Keywords skeleton upper limb humerus radius ulna carpal metacarpal phalanges
