Skeletal tissues: it is the hard connective tissues that forms supportive framework of body. It is of two types:
- Cartilage – this tissue is elastic, harder than connective tissue proper but softer than bone. Its elasticity is due to presence of protein chondrin. Spaces in its matrix are called lacunae, which contain cartilage forming cells called chondrocytes. It is of three type’s hyaline, fibrous and calcified. It form supportive framework of nose, pinna, etc.
- Bone – it is hardest connective tissues its matrix is so much hard due to presence of salts, such as calcium phosphate, etc. it help in locomotion. It protect internal delicate organ.