Animal Tissue — Biology STD 11 Science — Question

Cartilage is a type of supporting connective tissue. It is a pliable yet tough tissue.
Structure:
1. Abundant matrix is delimited by a sheath of collagenous fibres called perichondrium.
2. The matrix is called chondrin.
3. Below the perichondrium, immature cartilage forming cells called chondroblasts are present.
4. Chondroblasts mature and get converted into chondrocytes.Chondrocytes are scattered in the matrix and are enclosed in the lacunae Each lacuna contains 2 to 8 chondrocytes.
5. It forms the endoskeleton of cartilaginous fishes like shark.
6. It is widely distributed in vertebrate animals