Week 11: Extracellular Matrix; Various Types of Extra-cellular Matrix Proteins; Elastic Fibronectin, Glycoprotein, Collagen, Dyanin and Motor Proteins

Extracellular matrix Non-living material secreted by cells that fills spaces between the cells in a tissue, protecting them and helping to hold them together. The extracellular matrix may be semifluid or rigidly solid and hard as in bone. It is a complex chemically and physically crosslinked network of proteins and glycosaminoglycans. This matrix serves to organize cells in space, to provide them with environmental signals to direct site-specific cellular regulation and to separate one tissue space from another.

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