Principles of Anatomy and Physiology 14e with Atlas of the Skeleton Set (14th Edition)

Published by Wiley
ISBN 10: 1-11877-456-6
ISBN 13: 978-1-11877-456-4

Chapter 10 - Muscular Tissue - Figure 10.5 - Page 302: 1

Answer

Fig. 10.5:1 Answer. During skeletal muscle contraction, the I band "disappears."

Work Step by Step

During muscle contraction, the thin filaments slide towards the center of the sarcomere taking the Z discs with them. At maximal contraction, both the H zone and the I band disappear, but the lengths of thick filaments remain unaltered.
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