Synol fluids of normal joints are usually devoid of collagen. Patients with rheumatoid diseases have various types of collagen in their synol fluid, depending on the tissue being damaged. If a patient has type II collagen in the synol joint, which of the following tissues is being eroded?
High-Yield Explanation
Type II collagen is present only in Hyaline and Elastic Cailages. Finding of type II collagen in the synol fluid of a joint indicates erosion of the aicular cailage. TYPE LOCATION Type I Dermis, tendon, ligaments and bone Type II Cailage, vitreous body, nucleus pulposus Type III Skin, vessel wall, reticular fibre of most tissues (lungs, liver, spleen...) Type IV Basement membrane