The extracellular matrix (ECM) is a dynamic
assemblage of interacting molecules that reorganise and
regulate cell functions in response to endogenous and
exogenous stimulii. Matrix components may affect cell
behaviour directly or indirectly through growth factor
sequestration and transmembrane signalling, by
controlling the speed of various molecules through the
ECM, and the access of growth factors, hormones and
neurotransmitters to the cell surface.