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From: gagen@bgsuvax.UUCP (kathleen gagen)
Newsgroups: sci.bio,sci.med,comp.ai,sci.misc
Subject: Re: Neurons can't regenerate? (was: Re: Taking AI models...)
Message-ID: <1130@bgsuvax.UUCP>
Date: Tue, 16-Jun-87 11:38:35 EDT
Article-I.D.: bgsuvax.1130
Posted: Tue Jun 16 11:38:35 1987
Date-Received: Sun, 21-Jun-87 08:48:10 EDT
References: <622@unicus.UUCP> <1331@sigi.Colorado.EDU> <1349@sigi.Colorado.EDU> <1757@ttrdc.UUCP>
Organization: Bowling Green State University B.G., Oh.
Lines: 14
Summary: regeneration of nerve cells
Xref: mnetor sci.bio:451 sci.med:2451 comp.ai:553 sci.misc:356

In article <1757@ttrdc.UUCP>, levy@ttrdc.UUCP (Daniel R. Levy) writes:
> Am I misinformed, then, when I hear about nerves growing back together in
> people who have an accidentally severed appendage surgically reattached?
> Also, what about the nerves which grow back into a wounded region of the
> body, say an area of burned flesh?


When nerves "grow back together"  the nerve cells do not undergow mitosis.
Rather, the end of the cut axon extends to enervate the region distal to the 
cut.  This process is more likely to occure if the sheth that covers the nerve
has been lined up on both sides of the cut region.

___
Kathi Gagen