Explanation Myelin sheath is generated by oligodendrocytes within the central nervous system while the Schwann cells are produced in the peripheral nervous system. The Schwann cells wrap all axons in the peripheral nervous system and create a myelin sheath around many of these axons. Schwann cell in the non-myelinated nerve fibers start to envelop multiple axons. The non-myelinated axon is enveloped by the Schwann cell plasma membrane, but there are no myelin sheath wraps around them...

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ISBN: 9780135241752

Author: Marieb

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Question

Chapter 12, Problem 26RQ

Summary Introduction

To review:

The relationship between axons and Schwann cells in myelinated versus non-myelinated nerve fibers.

Introduction:

The nerve cell or the neuron is the structural unit of the nervous system as it generates and transfers an electrical impulse from one cell to another and produces communication within the central nervous system and the body segments. The nerve cells are of three types, that is, sensory neurons, motor neurons, as well as interneurons.

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Chapter 12, Problem 25RQ

Chapter 12, Problem 1CRCAQ

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Chapter 12 Solutions

EBK HUMAN ANATOMY

Ch. 12 - In which direction are afferent signals carried?...Ch. 12 - What subdivision of the nervous system regulates...Ch. 12 - What type of sensation is (a) pain from a pulled...Ch. 12 - Which type of neuron process receives stimuli?Ch. 12 - Describe how the electrical impulse from one...Ch. 12 - What is the structural type of most sensory...Ch. 12 - Which structural type of neuron is most abundant?...Ch. 12 - Which neuroglia make myelin in the CNS? In the...Ch. 12 - Which neuroglia are common in regions where...Ch. 12 - Do Schwann cells cover nonmyelinated axons in the...

Ch. 12 - Name the connective tissue wrapping that encloses...Ch. 12 - Where do synaspes occur in the CNS, in white...Ch. 12 - Why is white matter white?Ch. 12 - If there is no interneuron in a reflex arc, as in...Ch. 12 - If you touch a hot stove, you reï¬‚exively...Ch. 12 - What type of neuronal circuit contains multiple...Ch. 12 - Both peripheral nerves and the white matter of the...Ch. 12 - From your understanding of the functions of myelin...Ch. 12 - What type of neurons form from neuroblasts in the...Ch. 12 - How does the development of sensory neurons...Ch. 12 - Prob. 1RQ Ch. 12 - Match the names of the cells in column B with the...Ch. 12 - Prob. 3RQ Ch. 12 - Prob. 4RQ Ch. 12 - An example of an effector is (a) the eye, (b) a...Ch. 12 - Prob. 6RQ Ch. 12 - A ganglion is a collection of (a) neuron cell...Ch. 12 - A synapse between a terminal bouton and a neuron...Ch. 12 - Myelin is most like which of the following cell...Ch. 12 - Prob. 10RQ Ch. 12 - Afferent neurons of the PNS synapse in the CNS...Ch. 12 - Prob. 12RQ Ch. 12 - Prob. 13RQ Ch. 12 - Place the connective tissue coverings surrounding...Ch. 12 - Define proprioception.Ch. 12 - Prob. 16RQ Ch. 12 - Prob. 17RQ Ch. 12 - Distinguish gray matter from white matter of the...Ch. 12 - What is distinctive about the appearance of a cell...Ch. 12 - Describe the differences between neurons and...Ch. 12 - Distinguish a nerve from a nerve ﬁber and a...Ch. 12 - Prob. 22RQ Ch. 12 - Draw a reï¬‚ex arc in place in the nervous system...Ch. 12 - Prob. 24RQ Ch. 12 - Why are the cell bodies of sensory neurons located...Ch. 12 - Prob. 26RQ Ch. 12 - Two anatomists were arguing about a sensory...Ch. 12 - An MRI scan and other diagnostic tests indicated...Ch. 12 - Prob. 3CRCAQ Ch. 12 - Rochelle developed multiple sclerosis when she was...Ch. 12 - Reï¬‚exes can be somatic (as in the knee-jerk...Ch. 12 - Prob. 6CRCAQ

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Solution Summary: The author explains the relationship between axons and Schwann cells in myelinated versus non-myelinated nerve fibers.

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