Medullary sheath Meaning, Definition & Usage
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noun a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
myelin sheath.
WordNet
Definitions
(Anat.) , the layer of white semifluid substance (myelin), between the primitive sheath and axis cylinder of a medullated nerve fiber.
Definitions
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(Anat.) See underMedullary .
