Definitions for: Myelin Sheath


[n] a layer of myelin encasing (and insulating) the axons of medullated nerve fibers



Synonyms: medullary sheath

See Also: axolemma, case, medulla, medullated nerve fiber, myelin, myelinated nerve fiber, myeline, nodes of Ranvier, oligodendria, oligodendroglia, Ranvier's nodes, sheath

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