Schwann cell

Schwann cell
noun
any cell that covers the nerve fibers in the peripheral nervous system and forms the myelin sheath
Hypernyms: ↑somatic cell, ↑vegetative cell

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\\ˈshw]än-, ˈshf], ˈshv]\ noun
Usage: usually capitalized S
Etymology: after Theodor Schwann died 1882 German naturalist
: a cell of the neurilemma of a nerve fiber

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Biol.
a cell of the peripheral nervous system that wraps around a nerve fiber, jelly-roll fashion, forming the myelin sheath.
[1930-35; after T. SCHWANN, who first described it]

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Schwann cell /shvan sel/ (zoology)
noun
A large nucleated cell that lays down myelin in peripheral nerve fibres
ORIGIN: Theodor Schwann (1810–82), German physiologist

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Schwann cell «shwahn, shvahn»,
any one of the cells that form a myelin sheath around the nerve fibers or axons in the peripheral nervous system.
[< Theodor Schwann, 1810-1882, a German anatomist]

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Schwann cell — shwän n a cell that forms spiral layers around a myelinated nerve fiber between two nodes of Ranvier and forms the myelin sheath consisting of the inner spiral layers from which the protoplasm has been squeezed out Schwann shvän Theodor Ambrose… …   Medical dictionary

  • Schwann cell — Schwann′ cell n. hic (lab cbl) a cell of the peripheral nervous system that wraps around a nerve fiber, jelly roll fashion, forming the myelin sheath • Etymology: 1930–35; after T. Schwann, who first described it …   From formal English to slang

  • Schwann cell — [shwän] n. any of the cells covering the myelin sheath that surrounds and insulates an axon of a nerve cell: see also NODE OF RANVIER …   English World dictionary

  • Schwann cell — Structure of a typical neuron Schwann cells wrapped around an axon Dendrite …   Wikipedia

  • Schwann cell — noun Etymology: Theodor Schwann died 1882 German naturalist Date: circa 1909 the myelin secreting cell surrounding a myelinated nerve fiber between two nodes of Ranvier …   New Collegiate Dictionary

  • Schwann cell — Biol. a cell of the peripheral nervous system that wraps around a nerve fiber, jelly roll fashion, forming the myelin sheath. [1930 35; after T. SCHWANN, who first described it] * * * …   Universalium

  • Schwann cell — (ARTHROPODA: Insecta) An elongate cell into which motor axons sink and become suspended by a suspensory fold; lemnoblast; neurilemma cell …   Dictionary of invertebrate zoology

  • Schwann cell — A specialized glial cell that wraps around vertebrate axons providing extremely good electrical insulation. Separated by nodes of Ranvier about once every millimetre, at which the axon surface is exposed to the environment. See saltatory… …   Dictionary of molecular biology

  • Schwann cell — A type of glial cell of the peripheral nervous system that helps separate and insulate nerve cells …   English dictionary of cancer terms

  • Schwann cell membrane (sheath) nucleus substance — (shvahn) [Theodor Schwann, German anatomist and physiologist, 1810–1882] see under cell and nucleus, and see neurilemma …   Medical dictionary

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