![]() As with the other markings, their size and shape reflect the size of the vessels and nerves that penetrate the bone at these points.Ĭommon bone markings include the following: ![]() A hole is an opening or groove in the bone that allows blood vessels and nerves to enter the bone. In general, their size and shape is an indication of the forces exerted through the attachment to the bone. These are the attachment points for tendons and ligaments. A projection is an area of a bone that projects above the surface of the bone. These surfaces tend to conform to one another, such as one being rounded and the other cupped, to facilitate the function of the articulation. As the name implies, an articulation is where two bone surfaces come together (articulus = “joint”). There are three general classes of bone markings: (1) articulations, (2) projections, and (3) holes. The surface features of bones vary considerably, depending on the function and location in the body. Bone markings also provide stabilization, protection and a pathway to nerves, vessels, and other structures. ![]() \)īone markings are very important since they allow for identification of bones and bony pieces, enable joints to form, enable bones to slide past each other, enable bones to lock in place, and provide places for muscle and connective tissues to attach and provide structural support. ![]()
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