Is the junction of bone joints or connections between the bones. According to the freedom of movement joints can be classified into 3 types namely:
- Joint death : the relationship between a single bone with another bone can not be moved. For example: the bones that form the skull.
- Stiff joints : the relationship between bone very little movement. For example: the relationship between the ribs and sternum.
- Joint motion : the relationship between the bones that can be mobilized freely. For example: the relationship between bone joints and bones player atlas.


