PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of cells make up the myelin sheath in the PNS?
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astrocytes
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Schwann cells
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microglial cells
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oligodendrocytes
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Explanation:
Detailed explanation-1: -The myelin membranes originate from and are a part of the Schwann cells in the peripheral nervous system (PNS) and the oligodendroglial cells in the central nervous system (CNS) (see Chap. 1). Each myelin-generating cell furnishes myelin for only one segment of any given axon.
Detailed explanation-2: -Abstract. In the central nervous system (CNS), oligodendrocytes myelinate multiple axons; in the peripheral nervous system (PNS), Schwann cells (SCs) myelinate a single axon.
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