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Types of bone

There are five different types of bone, which are classified in relation to their shape, size and function. These are described below:

Type of Bone Function
Long Long bones are effective levers producing movement. They have greater length than width.
Short Short bones have good strength and weight bearing potential, but less movement. They are cube shaped nearly equal in length and width.
Flat Flat bones are generally thin offering protection and a large surface area for muscle attachment.
Irregular Irregular bones are complex shapes with various functions including protection and support for internal organs.
Sesamoid Sesamoid bones are small nodules of bone embedded in certain tendons. They modify pressure and diminish friction.