The skeletal system consists of a framework of bones and cartilages. The study of the skeletal system is known as osteology or skeletology
This system has a significant role in the movement shown by the body.
Bone and cartilage are specialised connective tissues.
Bones have a very hard matrix due to calcium salts in it.
Cartilage has a slightly pliable matrix due to chondroitin salts.
In human beings, this system is made up of 206 bones and a few cartilages.
It is grouped into two principal divisions –
Axial skeleton: It is present on the median longitudinal axis of the body. It consists of the skull, vertebral column, sternum and ribs. It contains 80 bones.
Appendicular skeleton: It is situated on the lateral sides which extend outwards from the principal axis. It consists of the pectoral and pelvic girdle and bones of arms and legs