
Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Question
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

Explanation of Solution
The main functions of the myelin sheath are shown in the below diagram.
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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Chapter 27 Solutions
Essentials of Biology (5th International Edition)
Ch. 27.1 - 1. Describe the structure and function of a...Ch. 27.1 - Explain how a nerve impulse is generated and...Ch. 27.1 - Prob. 3LOCh. 27.1 - Give examples of drugs of abuse, and explain how...Ch. 27.1 - Prob. 5LOCh. 27.1 - Prob. 6LOCh. 27.1 - Prob. 1CYPCh. 27.1 - Prob. 2CYPCh. 27.1 - Prob. 3CYPCh. 27.1 - Prob. 4CYP
Ch. 27.1 - Identify the structures of the central nervous...Ch. 27.1 - Prob. 6CYPCh. 27.1 - Prob. 7CYPCh. 27.1 - Prob. 1ACh. 27.1 - Prob. 2ACh. 27.1 -
3. Transmission of a nerve impulse across a...Ch. 27.1 - Prob. 4ACh. 27.1 - Prob. 5ACh. 27.1 - Prob. 6ACh. 27.2 - Prob. 1LOCh. 27.2 - Prob. 2LOCh. 27.2 - 3. Compare and contrast the actions of steroid and...Ch. 27.2 - Prob. 4LOCh. 27.2 - Prob. 1CYPCh. 27.2 - Prob. 2CYPCh. 27.2 - Prob. 3CYPCh. 27.2 - Prob. 4CYPCh. 27.2 - Prob. 5CYPCh. 27.2 - Prob. 7ACh. 27.2 - Prob. 8ACh. 27.2 - Prob. 9ACh. 27.2 - Prob. 10ACh. 27.2 - Prob. 11ACh. 27.2 - Prob. 12ACh. 27 - Prob. 1BYBCh. 27 - Prob. 2BYBCh. 27 - Prob. 3BYBCh. 27 - Prob. S19.1BYBCh. 27 - Prob. S22.3BYBCh. 27 - Section 5.4 How does active transport move...Ch. 27 - Prob. 1TCCh. 27 - Prob. 2TCCh. 27 - Prob. 3TCCh. 27 - The Food and Drug Administration (FDA) approved...Ch. 27 - Prob. 5TC
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