impulse signaling

impulse signaling

[′im‚pəls ¦sig·nə·liŋ]
(communications)
Conveying information by means of on-off conditions transmitted down a line or over free space.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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These are the brain's "housekeepers," supporting the physical structure, providing nutrients for nerve cells, manipulating the blood-brain barrier that protects the brain, and even becoming involved in nerve impulse signaling. For years the role mainly ascribed to astrocytes in MS was the development of hardened scars after the immune attack caused damage, but recent research indicates that their role may, in fact, be more complex.
Astrocytes: good housekeepers or not for people with MS?

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