myelinated fiber


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Related to myelinated fiber: myelin sheath

myelinated fiber

(mī′ə-lə-nā′tĭd)
n.
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.

myelinated fiber

A nerve fiber whose axon (dendrite) is wrapped in a myelin sheath.
See also: fiber
References in periodicals archive ?
Myelinated fibers were identified by the presence of either NaD channel clusters at the nodes of Ranvier (data not shown) or MAG clusters at the paranodal regions.
1983) Axolem mal differentiation in myelinated fibers of rat peripheral nerves.
SIGMA]Y is the number of the myelinated fiber profiles in each block or number of the points hitting on the fiber profiles in each block and n is the number of blocks used when estimating the length or volume density of the myelinated fibers in the white matter.
Glycerol is a hyperbaric solution that is injected into the Meckel's cave to cause destruction to the myelinated fibers of the nerve.
Ultrastructural study confirmed dropout of large- and small-diameter myelinated fibers and disclosed inclusions located mainly in myelinated fibers (Figure 3, A).
Seven patients (1, 2, 3, 4, 6, 7, and 8) had severe loss of myelinated fibers, three (1, 2, and 4) of whom had amyloid deposits, while the other patients had no amyloid deposits from light and electron microscopic examinations.
The quantitative data from this analysis (Figure 4) show that the area of myelinated fibers in the operated-vehicle group (12.
Large-diameter myelinated fibers (motor, sensory) undergo the most damage.
11] Demyelinated fibers do not conduct rapid trains of stimuli as well as myelinated fibers and go into conduction block after repeated use.
Myelinated fibers are bilateral in 17-20% of cases and, clinically, they are discontinuous with the optic nerve head in 19%.
Watanabe (1981) reported that mouse inferior alveolar nerve contains a great number of thick myelinated fibers and few unmyelinated fibers enveloped by Schwann cell cytoplasmic sheath.