unmyelinated


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Related to unmyelinated: unmyelinated fibers

unmyelinated

 [un-mi´ĕ-lĭ-nāt″ed]
not having a myelin sheath.

un·my·e·li·nat·ed

(ŭn-mī'ĕ-li-nāt'ed),
Denoting nerve fibers (axons) lacking a myelin sheath.

unmyelinated

(ŭn-mī′ə-lĭ-nā′tĭd)
adj.
Lacking a myelin sheath. Used of a nerve fiber.

un·my·e·li·nat·ed

(ŭn-mī'ĕ-li-nā-tĕd)
Denoting nerve fibers (axons) lacking a myelin sheath.
Synonym(s): amyelinated, amyelinic.

unmyelinated

Of a nerve fibre, lacking a MYELIN SHEATH.

un·my·e·li·nat·ed

(ŭn-mī'ĕ-li-nā-tĕd)
Denoting nerve fibers (axons) lacking a myelin sheath.
Synonym(s): amyelinated, amyelinic, unmedulated.
References in periodicals archive ?
They suggested that the optic nerve in adulthood mainly employs the "myelin remodeling" strategy--replacing and restructuring myelin on fully myelinated axons, whereas other brain regions such as the corpus callosum may use "de novo myelination" strategy--through myelinating previously unmyelinated axons [58].
(2015) have proposed a functional OCT scanner to detect cross-sectional neural activity in unmyelinated nerves dissected from squid (see Figures 4 and 5) [62].
The epidermal layer of the skin is innervated by small fibers, which comprise unmyelinated C-fibers and thinly myelinated A-delta fibers [8].
Povlishock, "Myelinated and unmyelinated axons of the corpus callosum differ in vulnerability and functional recovery following traumatic brain injury," Experimental Neurology, vol.
Pain is transmitted via thick, myelinated A ([beta] and [delta])-fibres, as well as thin, unmyelinated C-fibres.
For instance, with the onset of exercise, contraction induced mechanical and chemical stimuli begin to activate receptors on the terminal end of both thinly myelinated (group III, mechanoreflex) and unmyelinated (group IV, metaboreflex) nerve fibers located within skeletal muscle.
Nerve histopathology of the different forms of FAP is similar showing fiber-length-dependent polyneuropathy, loss of myelinated nerves, particularly small myelinated and unmyelinated nerve fibers.
(1973) Influence of the length of the depolarized zone on the extracellular potential field of a single unmyelinated nerve fibre.
(31) These fibers were often associated with DCUN1D2-positive unmyelinated Schwann cells.
Electron microscopy showed dense HNE staining on the basal laminae of blood vessels and on the plasma membranes of unmyelinated axons [21].
Increased signal intensity on T2-weighted images and decreased signal intensity on T1-weighted ones are demonstrated in almost all patients with the exception being infants and neonates where T1-weighted images show enhancement due to the similar relaxation time of T1 and the unmyelinated brain [13].