Viscosity of synovial fluid depends upon:-: (A) N-acetyl galactosamine, (B) N-acetyl glucosamine, (C) Glucuronic acid, (D) Hyaluronic acid
Answer is D. Ans. is 'd' Hyaluronic acid .The viscosity and the plastic (thixotropic properties) of the synovial fluid is because of its hyaluronate content.Hyaluronic acid, a glycosaminoglycan is a polymer of repeating disaccharide units (of glucuronic acid and N-acetyl glucosamine).Also RememberFunctions of Glycosaminoglycans* Hyaluronic acidViscosity of the synovial fluid.jelly like consistency of vitreous humor of eye*.Tensile strength and elasticity of cartilage and tendons*.* Chondroitin sulfate* Tensile strength of cartilage tendons, ligaments and the walls of aorta*.* Dermatan sulfate* Pliability of skin* and heart valves*.* Keratan sulfateFound in horny structures* of body composed of dead cells - hair, nails, claws, horn, hoofs.Also present in cornea*.* Heparin* Anticoagulant