The skeleton of the upper limb (or upper extremity) consists of bones of the shoulder girdle and bones of the free upper extremity, which is subdivided into three parts: upper arm, lower arm, and hand.
The shoulder girdle is formed by two bones on each side: clavicle and scapula.
The upper arm is formed by a single bone - humerus, while the forearm consists of two bones - radius and ulna.
The terminal part of the upper extremity is the hand, which has a skeleton consisting of 27 bones.