Skeleton is the term used for the bones of the human body. It provides support and protection for the organs and tissues of the body. The skeleton also serves as a storehouse for minerals such as calcium and phosphorus.
The human skeleton is made up of 206 bones. The bones are divided into two main groups: the axial skeleton and the appendicular skeleton. The axial skeleton includes all of the bones along the central axis of the body, such as those in the skull, spine, and rib cage. The appendicular skeleton consists of all of the bones in the limbs, such as those in the arms and legs.
Bones are held together at their joints by ligaments. Ligaments are strong, fibrous bands of tissue that connect one bone to another. There are three types of joints: immovable (such as those in your skull), slightly movable (such as those between your vertebrae), and freely movable (such as those in your fingers).