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Related to myelinated fiber: myelin sheath
An axon enveloped by a myelin sheath formed by oligodendroglial cells in the brain and spinal cord or by Schwann cells in the peripheral nerves.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
A nerve fiber whose axon (dendrite) is wrapped in a myelin sheath.
See also: fiber
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