what kind of polysaccharides are found in cartilage?
Hyaluronic acid, one of the polymers that accounts for the toughness and flexibility of cartilage and tendon, typiiies this group of extracellular polysaccharides. Other heteropolysaccharides, sometimes in very large aggregates with proteins (proteoglycans), account for the high viscosity and lubricating properties of some extracellular secretions.