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C. When muscle is diseased the number of muscle fibers in each motor unit is reduced. Some muscle fibers innervated by the two motor neurons shrink and.

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Presentation on theme: "C. When muscle is diseased the number of muscle fibers in each motor unit is reduced. Some muscle fibers innervated by the two motor neurons shrink and."— Presentation transcript:

1 C. When muscle is diseased the number of muscle fibers in each motor unit is reduced. Some muscle fibers innervated by the two motor neurons shrink and become nonfunctional. In the electromyogram the motor unit potentials do not decrease in number but are smaller and of shorter duration than normal. Source: Diseases of the Nerve and Motor Unit, Principles of Neural Science, Fifth Editon Citation: Kandel ER, Schwartz JH, Jessell TM, Siegelbaum SA, Hudspeth AJ, Mack S. Principles of Neural Science, Fifth Editon; 2012 Available at: Accessed: October 31, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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