myelinated fibers

myelinated fibers
myelinated nerve fibers grayish white nerve fibers whose axons are encased in a myelin sheath, which may in turn be enclosed by a neurilemma; called also medullated f's and medullated nerve f's. Cf. unmyelinated f's.

Medical dictionary. 2011.

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Look at other dictionaries:

  • myelinated — adjective Date: 1899 having a myelin sheath < myelinated nerve fibers > …   New Collegiate Dictionary

  • myelinated — Having a myelin sheath. SYN: medullated (2). * * * my·e·lin·at·ed mī ə lə .nāt əd adj having a myelin sheath <myelinated nerve fibers> * * * see medullated * * * my·eli·nat·ed (miґə lĭ nāt″əd) having a myelin… …   Medical dictionary

  • myelinated nerve — a nerve, especially a peripheral nerve, whose fibers (axons) are encased in a myelin sheath, which in turn is enclosed by a neurilemma. Cf. unmyelinated n …   Medical dictionary

  • varicose fibers — certain myelinated fibers which have no neurilemma; after death a fluid accumulates between the myelin and the axon, giving the fibers a varicose appearance …   Medical dictionary

  • A fibers — myelinated afferent or efferent fibers of the somatic nervous system having a diameter of 1 to 22 μm and a conduction velocity of 5 to 120 meters per second; they include the alpha, beta, delta, and gamma fibers …   Medical dictionary

  • B fibers — myelinated preganglionic autonomic axons having a fiber diameter ≤3 μm and a conduction velocity of 3 to 15 meters per second; these include only efferent fibers …   Medical dictionary

  • A delta fibers — a type of small myelinated afferent A fibers that respond to pressure, temperature, or chemical stimuli, conducting from the cutaneous tissues the initial stimulus perceived as the primary painful event. Their conducting velocity is slow, about… …   Medical 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

  • medullated fibers — medullated nerve fibers myelinated f s …   Medical dictionary

  • Remak fibers — noun Non myelinated nerves in the peripheral nervous system …   Wiktionary

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