The reason due to which isotropic (I) () band and H zone get smaller, while no change in anisotropic (A) band is observed during the contraction of the skeletal muscle Introduction: The basic unit of every organ is cell; however, the specific cells themselves are composed of some simple units, like muscle cells are composed of the myofibrils. The myofibrils contain actin (thin) and myosin (thick) bundles, which are organized in a well-ordered fashion. The myofibril, in turn, is composed of the sarcomeres which are repeated in an order.

Question

since sarcomeres within skeletal muscles are rigidly aligned with each other what do you think excessive stretch or compression (remember the basic structure of the sarcomere with overlapping thin and thick filaments and the length-tension relationship) will do to the force generation of a muscle contraction?

Answer 1

Question

Chapter 47.1, Problem 1R

Summary Introduction

To review:

The reason due to which isotropic (I) () band and H zone get smaller, while no change in anisotropic (A) band is observed during the contraction of the skeletal muscle

Introduction:

The basic unit of every organ is cell; however, the specific cells themselves are composed of some simple units, like muscle cells are composed of the myofibrils. The myofibrils contain actin (thin) and myosin (thick) bundles, which are organized in a well-ordered fashion. The myofibril, in turn, is composed of the sarcomeres which are repeated in an order.

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