Dictionary » S » Schwann cell

Schwann cell

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.


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified 07:52, 30 June 2008. This page has been accessed 65,054 times. 
What links here | Related changes | Permanent link