Place a single word Into each sentence to make It correct, then arrange the sentences Into a logical paragraph order to describe the process of excitation-contraction coupling. Drag the text blocks below into their correct order. Excitation-contraction coupling refers to the events that link the action potentials on the sarcolemma to activation of the myofilaments It begins with the arrival of the at the neuromuscular junction. action potential Next, a wave of action potentials spreads from the end plate in all directions, reaching the T tubules, which carry the excitation T tubules wave into the sarcoplasm Calcium will bind to the of the thin filaments actin myosin In the troponin, action potentials open voltage-gated ion channels, whose physical connections cause the release of calcium ions from the terminal cisterns of the sarcoplasmic reticulum into the cytosol troponin sarcolemma On the thin filament, active sites are open for the binding of myosin heads, which allows the contraction to begin tropomyosin