Chapter 10.4, Problem 1AWYK

Summary Introduction

To write:

The bands becoming narrower or disappear during the contraction of muscle. Also, the bands remaining with the same width in relaxed muscle.

Introduction:

Muscle is a bundle or band of fibrous tissue present in a human or animal body. It can contract and move in preserving the position of body parts. Muscles play a role in the production of force and motion. They are mainly responsible for sustaining and shifting posture, locomotion.