Which of the following cells is not a part of the nerve cell?
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Axon
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Cyton
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Dendrites
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Myelin sheath
D
Correct answer
Explanation
The insulating envelope of myelin surrounds the core of a nerve fibre or axon and facilitates the transmission of nerve impulses, formed from the cell membrane of the Schwann cell in the peripheral nervous system and from oligodendroglia cells. It is also called medullary sheath.