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Michael Edelman mje at mich.com
Fri Feb 12 08:56:31 EST 1999



Richard Norman wrote:

> Someone wrote:
> > Many reflexes do not involve the CNS at all. Some, like the
> >patellar reflex mentioned, take place entirely at the level of the
> spine.
> >The brain finds out about it *after* it happens.
>
> Just to nitpick -- the spinal cord IS part of the CNS.
> There are gastric reflexes that work purely through the enterogastric
> plexuses that do not involved the CNS, and also local reflexes
> involving
> release of histamine that do not involve CNS.

You're absolutly right, of course. I should have said that there are
reflexes that are mediated entirely at the level of the spinal chord and
do not require mediation by the brain.

-- mike

--
Michael Edelman     http://www.mich.com/~mje





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