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Nerve Fibers, Unmyelinated MeSH Descriptor Data 2025


MeSH Heading
Nerve Fibers, Unmyelinated
Tree Number(s)
A08.675.542.756
A11.671.501.756
Unique ID
D036421
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D036421
Scope Note
A class of nerve fibers as defined by their nerve sheath arrangement. The AXONS of the unmyelinated nerve fibers are small in diameter and usually several are surrounded by a single MYELIN SHEATH. They conduct low-velocity impulses, and represent the majority of peripheral sensory and autonomic fibers, but are also found in the BRAIN and SPINAL CORD.
Entry Term(s)
C Fibers
Previous Indexing
Nerve Fibers (1976-2002)
See Also
Gray Matter
Public MeSH Note
2003; for C FIBERS see NERVE FIBERS 1977-2002
History Note
2003; for C FIBERS use NERVE FIBERS 1977-2002
Date Established
2003/01/01
Date of Entry
2002/07/03
Revision Date
2014/06/10
Nerve Fibers, Unmyelinated Preferred
C Fibers Narrower
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