Essentials of Biology (5th International Edition)
Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Chapter 27, Problem 1BYB
Summary Introduction

To describe:

The function of myelin.

Given:

The axons of the neurons may have a protective covering made up of lipid materials called as myelin.

Introduction:

Based on myelin the nerve cell may be divided into two categories i.e., myelinated and non-myelinated neurons. The myelin has a variety of functions.

Expert Solution & Answer
Check Mark

Explanation of Solution

The main functions of the myelin sheath are shown in the below diagram.

Essentials of Biology (5th International Edition), Chapter 27, Problem 1BYB

Conclusion

Thus, the presence of myelin sheath insulates, prevents the flow of ions and increases the velocity of conduction of action potential along the axon. 

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