The basic structure of the human body is the skeletal system. The entire body is built around the hard framework of Skeleton. At birth around 270 bones are present, by adulthood this total decreases to around 206 bones when bones merge together.
The skeleton is composed of fibrous and mineralized connective tissues that give it firmness and flexibility.
Bone - It is a type of mineralized connective tissue that contains collagen and calcium phosphate, a mineral crystal. Calcium phosphate gives bone its firmness. Bone tissue may be compact or spongy.
Cartilage - It is a form of fibrous connective tissue that is composed of closely packed collagenous fibers in a rubbery gelatinous substance called chondrin. Cartilage provides flexible support for certain structures in adult humans including the nose, trachea, and ears.
Tendon - It is a fibrous band of connective tissue that is bonded to the bone and connects bone to bone.
Ligament -It is a fibrous band of connective tissue that joins bones and other connective tissues together at joints.
Joint -It is a site where two or more bones or other skeletal components are joined.