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C fiber

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C fiber
C fiber not labeled, but substantia gelatinosa of Rolando is Rexed lamina II, labeled at upper left.
Latin '
Gray's subject #
System
MeSH [1]
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C-fibers are part of the human sensory system, the part of the nervous system responsible for processing sensory information.

They are unmyelinated and as a result, have a slower conduction velocity than other nerve fibers, lower than 2 m/s. These fibers are associated with chronic or dull pain. C-fibers are associated with sensations of warmth, as well as mechanical and chemical stimuli. The density for cold receptors in the skin is greater than the density of warm-receptors (by a factor of 5). It is thought that most or all C fibers are nociceptors (responding only to noxious stimuli).

C fibers terminate in the substantia gelatinosa of Rolando.

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