So by creating a different types or by changing the composition of the matrix, that ultimately allows the formation of some type of roadway system that allows a cell to move from one location to a different location. So when the mortgage and binds onto the protein receptor it can stimulate that cell to produce a special type of protein that is found inside the extracellular matrix that can ultimately influence the movement of that cell. Now, the last important part is the fact that these proteins produced as a result of the binding of the mortgagen can also influence the way that the cell actually contracts. It can influence the shape and the size of that cell. For example, special types of cells can produce special types of proteins known as myosin and actin. And when myosin and actin, which are found in muscle cells, contract, they cause those cells to actually contract.