ARTICULAR CARTILAGE Chondrocytes Extracellular matrix ater 66-78% Organic material 22-34 Proteoglycan 22-38% collagen type II 48-62 Fibronectin Other matrix proteins 05-15%ARTICULAR CARTILAGE ARTICULAR CARTILAGE Chondrocytes Chondrocytes Extracellular matrix Extracellular matrix Water 66 -78% Organic material Organic material 22 -34% Proteoglycan Proteoglycan 22 -38% Collagen type II Collagen type II 48 -62% Fibronectin & Fibronectin & Other matrix proteins Other matrix proteins 05 -15%