What is the Role of the Extracellular Matrix in Muscle Tissue?
The extracellular matrix (ECM) plays a crucial role in muscle tissue by providing structural support and facilitating communication between cells. In skeletal muscle, the ECM includes the endomysium, perimysium, and epimysium, which surround individual muscle fibers, fascicles, and the entire muscle, respectively. The ECM contains collagen, elastin, and other proteins that contribute to the elasticity and strength of the muscle tissue. In cardiac and smooth muscle, the ECM also provides mechanical support and helps maintain tissue integrity.