Question: 3 Arrange The Events Before And After Ca²+ Release In Muscle Contraction, In The Order That They Occur. Depolarization Of Motor Endplate. 2 Actin Binding Site Is Exposed And Myosin Can Now Bind. 3 Ca?” Binds Troponin And Causes A Shift In Tropomyosin 4 Cal Released From SR On Crossbridge Cycle Starts And The Muscle Contracts Action Potential Propagates …

3 Arrange the events before and after Ca²+ release in muscle contraction, in the order that they occur. Depolarization of motor endplate. 2 Actin binding site is exposed and myosin can now bind. 3 Ca?” binds troponin and causes a shift in tropomyosin 4 Cal released from SR on Crossbridge cycle starts and the muscle contracts Action potential propagates along the sarcolemma Action potential propagates down t-tubules. Gossbridge cycle starts and the muscle contracts.