This unit discusses the physiology of muscles.

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Myosin and Actin

by Sal Khan

This video discusses how proteins interact with each other and ATP to produce mechanical motion.
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This video builds on what was learned in the Myosin and Actin video and discusses how muscle contraction is regulated
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This video discusses the role of sarcoplasmic reticulum in muscle cells.
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This video details the structure of a muscle cell.
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