3 concepts
Humerus (The Upper Arm)
The bone forming the upper arm is the humerus.
Ulna and Radius (The Forearm)
The forearm contains two bones, the radius and the ulna.
Carpals, Metacarpals, and Phalanges (The Hand)
Each hand consists of 27 bones, divided between the wrist bones (carpals), the palm bones (metacarpals), and the finger bones (phalanges).