Schwann cells

Schwann cells
the cells that lay down the myelin sheath around the axon of a medullated nerve fibre. Each cell is responsible for one length of axon, around which it twists as it grows, so that concentric layers of membrane envelop the axon. The gap between adjacent Schwann cells forms a node of Ranvier.
T. Schwann (1810-82), German anatomist and physiologist

Medical dictionary. 2011.

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  • Schwann cells — the cells that lay down the myelin sheath around the axon of a medullated nerve fibre. Each cell is responsible for one length of axon, around which it twists as it grows, so that concentric layers of membrane envelop the axon. The gap between… …   The new mediacal dictionary

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

  • Schwann, Theodor — born Dec. 7, 1810, Neuss, Prussia died Jan. 11, 1882, Cologne, Ger. German physiologist. He founded modern histology by recognizing the cell as the basic unit of animal structure. A year after Mathias Jacob Schleiden, a colleague Schwann knew… …   Universalium

  • 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 — [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 , Theodor — (1810–1882) German physiologist Born at Neuss in Germany, Schwann was educated at the universities of Bonn, Würzburg, and Berlin where he obtained his MD in 1834. He worked with Johannes Müller in Berlin from 1834 until 1838 when he moved to… …   Scientists

  • 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 * * * ˈshw]än , ˈshf], ˈshv] noun Usage: usually capitalized S Etymology: after Theodor Schwann… …   Useful english dictionary

  • Schwann — Theodor, German histologist and physiologist, 1810–1882. See S. cells, under cell, S. cell unit, S. white substance, sheath of S …   Medical dictionary

  • Schwann — /ʃvan/ (say shvahn) noun Theodor /ˈteɪədɔ/ (say tayuhdaw), 1810–82, German physiologist; with Schleiden, formulated the theory that living organisms are composed of cells …  

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

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