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 10.4 - Page 299: 2

Answer

A bands contain both thick and thin filaments. Proteins in these bands include both myosin, and actin. I bands contain thin filaments, but no thick filaments. Proteins in this region include actin, titin, desmin, troponin and tropomyosin

Work Step by Step

The I bands have thin filaments but no thick filaments. Proteins in these bands include actin, titin, troponin and tropomyosin. A bands contain both thick and thin filaments. Proteins in these bands include myosin also.
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