The humerus is classed as a long bone and is located in the upper arm, connecting the shoulder to the elbow. The long bone as suggested by its name is long in structure, meaning they are considerably longer then they are wider. The structure for the humerus is typically similar to all structures of long bones, with a shaft, bone ends and membranes. Dyaphysis or the shaft of the humerus makes up the long axis of he bone and is constructed of very high density compact bone (Merieb, 2010). This structure engulfs around the medullary cavity, which houses the bone marrow. Humerus epiphyses is normally always wider then the dyaphysis. The outer layer of the epiphyses is made of compact bone whilst the interior contains spongy bone. At each epiphyses
