The anatomical neck is between the humeral head and ... The growth plate is an integral yet sensitive part of the humerus. Birth defects, bone infection (osteomyelitis), and/or trauma can act ...

There is one radius (R1) and one ulna (U1); these are the two bones that connect the wrist and elbow. There are two humerus bones (H1 and H2). The humerus connects the shoulder and the elbow.