Extracellular matrix o Two basic forms of o Three basic components ECM 1.Collagens and elastins 1.Basement membranes 2.Proteoglycans and hyaluronan 2.Interstitial matrix 3.Adhesive glycoproteinsExtracellular matrix  Three basic components 1. Collagens and elastins 2. Proteoglycans and hyaluronan 3. Adhesive glycoproteins  Two basic forms of ECM 1. Basement membranes 2. Interstitial matrix