Schwann cell

Revision as of 07:52, 30 June 2008 by Honee_v (Talk | contribs) (definition and internal links)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Definition

noun, plural: Schwann cells

A glial cell that wraps around the nerve fiber in the peripheral nervous system, and forms the myelin sheaths of peripheral axons.


Supplement

Schwann cells form a fatty material called myelin to insulate the axons in the peripheral nervous system. This method decreases membrane capacitance in the axon, thus, allowing saltatory conduction. Non -myelinating Schwann cells are involved in maintenance of axons and are crucial for neuronal survival.


Word origin: Named after Theodor Schwann who was first to describe it.
Synonym: neurilemma cell, neurolemmocyte.
See also: myelin, glial cell, peripheral nervous system.

Retrieved from "http://www.biology-online.org/bodict/index.php?title=Schwann_cell&oldid=93950"
First | Previous (Schultz-dale reaction) | Next (Schwann cells) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.