Campbell Essential Biology with Physiology (5th Edition)
5th Edition
ISBN: 9780321967671
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Chapter 27, Problem 2SQ
Summary Introduction
To explain: The function of myelin sheath.
Concept introduction:
Myelin sheath is a multilayered lipid and protein covering that surrounds the axon of neuron cell. It is only present in the vertebrates and increases from birth to maturity. Schwann cells present in the peripheral nervous system (PNS) and oligodendrocytes present in the central nervous system (CNS).
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Chapter 27 Solutions
Campbell Essential Biology with Physiology (5th Edition)
Ch. 27 - A neuron ends in many branches, each with a...Ch. 27 - Prob. 2SQCh. 27 - Your nervous system can be divided into two broad...Ch. 27 - Prob. 4SQCh. 27 - Prob. 5SQCh. 27 - Prob. 6SQCh. 27 - How is an action potential different from a...Ch. 27 - For each of the following senses in humans,...Ch. 27 - Mr. Johnson is becoming slightly deaf. To test his...Ch. 27 - Prob. 10SQ
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- How is a myelin sheath formed in the CNS, and what is its function?arrow_forwardWhich two types of neuroglia form insulating coverings called myelin sheaths?arrow_forwardWhat effect would decreasing the concentration of extracellular potassium ions have on the membrane potential of a neuron?arrow_forward
- What are the function of Glial Cells?arrow_forwardWhat is the role of ions, the phospholipid bilayer, and plasma membrane channels in neurons relative to the concepts of current, voltage, and resistance?arrow_forwarda) How does E allow faster transmission of signals? b) What would happen if G has a lack of Calcium? c) Most neurons have the style of junction (chemical) shown in the diagram, rather than gap (electrical) junctions. Why does this make sense?arrow_forward
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