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C or delta A fibers???

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Old 01-30-2010, 03:12 PM #1
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Default C or delta A fibers???
What is the difference between them? can the be distinguish in skin punch biopsy?
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Old 01-30-2010, 03:40 PM #2
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Old 01-30-2010, 03:50 PM #3
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Maybe this will help. It is Wikipedia which admitedly isn't scientific, but, it seems to explain things pretty well without too much techno speak.

http://en.wikipedia.org/wiki/C_fibers
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Old 01-30-2010, 04:12 PM #4
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Originally Posted by cyclelops View Post
Maybe this will help. It is Wikipedia which admitedly isn't scientific, but, it seems to explain things pretty well without too much techno speak.

http://en.wikipedia.org/wiki/C_fibers
I asked after trying to understand what is written in wikipedia. I'm looking for explanation regarding skin biopsy, PN symptoms etc. Any how thanks for the link.
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Old 01-31-2010, 08:09 AM #5
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Default How about this?
The Washington University at St. Louis' neuromuscular website has a nice chart of types of nerve fibers:

http://neuromuscular.wustl.edu/nother/axon.htm

All of the C-fibers are unmyelinated; they are often referred to as "free" nerve endings, and they sense many different types of pain and temperature fluctuations. These are usually the ones examined in a skin biopsy. There are a few slighly thicker, "lightly" myelinated fibers that contribute to the sense of cooling and to sharp pain, but most of the pain/temperature loop goes through the C fibers.
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