Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 9 - Muscles and Muscle Tissue - Review Questions - Page 317: 19

Answer

A slight, but smooth, contraction involves rapid stimulation of a few motor units and affects only a few muscle fibers of the muscle, whereas a strong contraction would involve stimulation of many, or all, motor units.

Work Step by Step

A slight, but smooth, contraction involves rapid stimulation of a few motor units and affects only a few muscle fibers of the muscle, whereas a strong contraction would involve stimulation of many, or all, motor units.
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