Refer back to figure 13.5. The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction.  Put these events in chronological order.

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A: The sliding filament mechanism describes the mechanism of contraction of skeletal muscles.

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Q: Which of the following is true concerning the role of Calcium in the contraction of muscle- cells?…

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Q: the statements that are true about the structures in the image:

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Q: ) What is the major actin structure found at the leading edge of the cell? (structure, not proteins)…

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