The skeletal system is divided into two parts.
1. Exoskeleton: The skeletal system that is visible from outside the body is called exoskeleton. Nails, teeth, hair etc. belong to this tantra.
2. Endoskeleton: The skeleton that forms the internal structure of the body is called endoskeleton. The human skeletal system is divided into two main parts. Axial skeleton and appendicular skeleton.