Where are the epiphysis located in a long bone?

The epiphysis refers to the ends of a long bone, which are distinct from the diaphysis, or shaft, of the bone. Each long bone consists of both a proximal and a distal epiphysis, separated from the shaft by a region known as the metaphysis. The epiphysis serves several important functions, including providing a surface for the articulation with adjacent bones (forming joints) and acting as a site for the attachment of muscles via tendons. This structure is crucial during growth, especially in childhood and adolescence, as it contains the growth plates, or epiphyseal plates, that facilitate the longitudinal growth of the bone. The other options pertain to areas of the bone that do not correctly define the location of the epiphysis.