Myelin and the Myelination Process in CNS and PNS
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(a) What is myelin? (b) How does the myelination process differ in the CNS and PNS?
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Solution Summary
Myelin is described and the myelination process in the CNS and PNS are contrasted.
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Myelin is a multilayered lipid and protein covering, wrapped around axons of most mammalian neurons that is produced by neuroglial cells. The entire wrapping is called a myelin sheath. It serves many functions, but essentially acts to increase the speed of nerve impulse conduction through a process called "saltatory conduction."
There are two types of neuroglia that produce myelin sheaths. In the peripheral nervous system, neurolemmocytes (Schwann cells) produce ...
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