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Richard Norman rsnorman at mw.mediaone.net
Thu Feb 11 16:39:48 EST 1999


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.





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