**2.2 Anatomical varieties**

Several anatomical varieties of bones are distinguished (**Figure 1**). Each bone has a particular shape that meets a specific need.

• Long bones. This name reflects their morphology and not their size. They include a central body and two ends. The radius, the humerus, the tibia, the femur… belong to this anatomical variety.

**Figure 1.** *Structure of a long bone [1].*

