Answer
(a) a twitch
Work Step by Step
A muscle twitch is a motor unit’s response to a single action potential of its motor neuron. The muscle fibers contract quickly and then relax (page 293).
Human Anatomy & Physiology (9th Edition)
by Marieb, Elaine N.; Hoehn, Katja N.
Published by
Pearson
ISBN 10:
0321743261
ISBN 13:
978-0-32174-326-8
Chapter 9 - Muscles and Muscle Tissue - Review Questions - Page 317: 6
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