The connective tissues keep organs from falling apart. Connective tissues are made up of cells that are separated from each other by a large amount of extracellular matrix. The extracellular matrix is made up of proteins, carbohydrates, and water. The proteins in the extracellular matrix form a network that holds the cells together and provides strength and support to the tissue. The carbohydrates in the extracellular matrix help to hold water and provide lubrication.