Explanation Explanation/justification for the correct answer: The myelin lends a whitish color to white matter, which is composed of myelinated axons. Gray matter consists of cell bodies, dendrites and other non-myelinated regions. Hence, option (d) is the answer. Explanation for the correct answer: Option (a) is ‘The white matter is composed of non-myelinated fibers, and the gray matter is composed of myelinated fibers’. This is not true, white matter is composed of myelinated fibers. Therefore, this option is incorrect. Option (b) is ‘The white matter is composed of neuron bodies, and the gray matter is composed of axons and dendrites’...

Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.

What is Life? A Guide to Biology

3rd Edition

ISBN: 9781464135958

Author: Jay Phelan

Publisher: W.H. Freeman & Co

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Chapter 23, Problem 7MC

Summary Introduction

Introduction:

Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.

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Chapter 23, Problem 6MC

Chapter 23, Problem 8MC

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Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.

Solution Summary: The author explains that myelin lends a whitish color to white matter, which is composed of non-myelinated fibers, and gray matter consists of cell bodies, dendrites and

Concept explainers

Introduction:

Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.

Want to see the full answer?

Chapter 23 Solutions

Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.

Solution Summary: The author explains that myelin lends a whitish color to white matter, which is composed of non-myelinated fibers, and gray matter consists of cell bodies, dendrites and

Concept explainers

Introduction: Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.

Want to see the full answer?

Chapter 23 Solutions

Introduction:

Myelin is an insulating sheath present along the outer surface of the axon of a neuron. It is necessary for neural signals to be transmitted efficiently.