GENERAL HISTOLOGY

Detailed explanation-1: -The extracellular matrix of cartilage is secreted by chondroblasts, (chondro = cartilage), which are found in the outer covering layer of cartilage. As the chondroblasts secrete matrix and fibres, they become trapped inside it, and mature into cells called chondrocytes. ( See diagram opposite)

Detailed explanation-2: -What is cartilage? Cartilage is a strong, flexible connective tissue that protects your joints and bones. It acts as a shock absorber throughout your body. Cartilage at the end of your bones reduces friction and prevents them from rubbing together when you use your joints.

Detailed explanation-3: -Chondrocytes are found in the cartilage matrix in cavities called the lacunae. Juvenile chondrocytes have an elongated shape but become rounded or polygonal as the cartilage frame moves inward.

Detailed explanation-4: -Hyaline-most common, found in the ribs, nose, larynx, trachea. Is a precursor of bone. Fibro-is found in invertebral discs, joint capsules, ligaments. Elastic-is found in the external ear, epiglottis and larynx.