unmyelinated

unmyelinated
adjective Date: 1915 lacking a myelin sheath <
unmyelinated axons
>

New Collegiate Dictionary. 2001.

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  • unmyelinated — Denoting nerve fibers (axons) lacking a myelin sheath. SYN: amyelinated, amyelinic, nonmedullated, nonmyelinated, unmedullated. * * * un·my·elin·at·ed mī ə lə .nāt əd adj lacking a myelin sheath <unmyelinated axons> * * * …   Medical dictionary

  • unmyelinated — adjective (of neurons) not myelinated • Ant: ↑myelinated • Pertains to noun: ↑myelin * * * “+ adjective : lacking a myelin sheath the unmyelinated fiber found in the mammalian central nervous system H.J.Curtis & K.S.Cole * * * …   Useful english dictionary

  • unmyelinated fibers — unmyelinated nerve fibers nerve fibers (axons) that lack the myelin sheath but may be enclosed by a neurilemma. Called also nonmedullated f s and nonmedullated nerve f s. Cf. myelinated f s …   Medical dictionary

  • unmyelinated — adj. [A.S. un, not; Gr. myelos, marrow] Nerves not covered with a myelin sheath …   Dictionary of invertebrate zoology

  • unmyelinated — /un muy euh leuh nay tid/, adj. Anat. pertaining to nerve fibers that are not covered with a myelin sheath. [1915 20; UN 1 + MYELINATED] * * * …   Universalium

  • unmyelinated — adjective Not myelinated …   Wiktionary

  • unmyelinated — un·myelinated …   English syllables

  • unmyelinated axon — naked a …   Medical dictionary

  • unmyelinated nerve — a nerve whose fibers (axons) are not encased in a myelin sheath, and which may or may not be enclosed by a neurilemma. Cf. myelinated n …   Medical dictionary

  • C fibers — unmyelinated nerve fibers, having a smaller diameter (0.3 to 1.3 μm) and a slower conduction velocity (0.6 to 2.3 meters per second) than alpha fibers. They are found as postganglionic (efferent) fibers of the autonomic nervous system, and… …   Medical dictionary

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