Extracellular matrix

The extracellular matrix is a complex network of proteins and molecules that exists outside cells, acting like a biological scaffold that holds tissues together and gives them structure and strength. Think of it as the "glue" and "framework" of your body—it not only provides physical support to cells but also communicates important signals that influence how cells behave, grow, and interact with their neighbors. This matrix is found throughout your body in places like skin, bone, and tendons, and understanding it is crucial for medicine since many diseases involve problems with the extracellular matrix breaking down or becoming abnormal.