Final answer:
The upper limb is divided into three regions: the arm, the forearm, and the hand. The arm has the humerus bone, while the forearm has the ulna and radius bones. The hand is made up of carpal, metacarpal, and phalanx bones.
Step-by-step explanation:
The upper limb is divided into three regions: the arm, the forearm, and the hand. The arm consists of a single bone called the humerus. The forearm is made up of two bones called the ulna and radius. The hand is comprised of 8 carpal bones, 5 metacarpal bones, and 14 phalanx bones.