Types of Bones (Bone Types) Types of Bones or ' Bone Types ' can be classified according to the shape of the bone. The shape of bones reflect their functions. When describing specific bones it can be useful to start by stating the type of bone in terms of its shape, e.g. "the scapula is a large flat triangular bone".
Shape Classification. The 206 bones that compose the adult skeleton are divided into five categories based on their shapes (Figure 6.6). Their shapes and their functions are related such that each categorical shape of bone has a distinct function.
The human skeleton has a number of functions, such as protection and supporting weight. Different types of bones have differing shapes related to their particular function. So, what are the different types of bones? How are they categorized? There are five types of bones in the skeleton: flat, long, short, irregular, and sesamoid.
Figure 1. Classifications of Bones. Bones are classified according to their shape. Long Bones. A long bone is one that is cylindrical in shape, being longer than it is wide. Keep in mind, however, that the term describes the shape of a bone, not its size.
An irregular bone is one that does not have any easily characterized shape and therefore does not fit any other classification. These bones tend to have more complex shapes, like the vertebrae that support the spinal cord and protect it from compressive forces.
Classification of bones on the basis of shape. Long bones, as their name suggests, are considerably longer than they are wide. A long bone has a shaft plus two ends which are often expanded. All limb bones except the patella (kneecap) and the wrist and ankle bones are long bones. Notice that these bones are named for their elongated shape, not ...
The 206 bones that compose the adult skeleton are divided into five categories based on their shapes (Figure 6.21).Like other structure/function relationships in the body, their shapes and their functions are related such that each categorical shape of bone has a distinct function.
Racial classifications are groups of physical characteristics. The 3 most common racial classifications, going by bone structures, are Caucasoid, African, and Asiatic.
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These bones include some bones of the skull, the ribs and the sternum. Irregular bones as their name suggests do not fit conveniently into any category according to their shape. Sesamoid bones is not a category based on shape although they tend to be short bones. A sesamoid bone is a bone that develops within a tendon.