The Extracellular Matrices Part l 2. Elastin fibers 3. Proteoglycans(PG)and glycosaminoglycans (GAG) 4. Cell-adhesion molecules(CAM)The Extracellular Matrices Part II. 2. Elastin fibers. 3. Proteoglycans (PG) and glycosaminoglycans (GAG). 4. Cell-adhesion molecules (CAM). 1