Order the following events of excitation and excitationcontraction coupling. Put 1 by the first event, 2 by the second, and so on._____ The motor end plate generates an end-plate potential._____ The action potential spreads along the T-tubules, SR calcium ion channels are pulled open, and calcium ions flood the cytosol._____ Acetylcholine binds to receptors on the motor end plate, and ligand-gated ion channels open._____ Calcium ions bind troponin, which allows tropomyosin to move away from the actin active site, initiating a contraction cycle._____ The action potential propagates through the sarcolemma and dives deeply into the cell along the T-tubules.

Order the following events of excitation and excitationcontraction coupling. Put 1 by the first event, 2 by the second, and so on.___ The motor end plate generates an end-plate potential._ The action potential spreads along the T-tubules, SR calcium ion channels are pulled open, and calcium ions flood the cytosol._ Acetylcholine binds to receptors on the motor end plate, and ligand-gated ion channels open._ Calcium ions bind troponin, which allows tropomyosin to move away from the actin active site, initiating a contraction cycle.___ The action potential propagates through the sarcolemma and dives deeply into the cell along the T-tubules.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section: Chapter Questions

Problem 6RE

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