What Are T Tubules In Muscles?
What Are T Tubules In Muscles? The transverse tubules (T-tubules) of mammalian cardiac and skeletal muscles are invaginations of the sarcolemma. They play a crucial role in excitation-contraction coupling as well as in intracellular signaling and in regulation of glucose transport. What is the T-tubule used for in muscle? T-tubules are invaginations of the plasma