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Descriptor English: Nerve Fibers, Unmyelinated
Descriptor Spanish: Fibras Nerviosas Amielínicas
Descriptor fibras nerviosas amielínicas
Entry term(s) fibras C
fibras nerviosas no mielinizadas
fibras nerviosas no mielínicas
Scope note: Tipo de fibras nerviosas que se definen según la disposición de la vaina del nervio. Los AXONES de las fibras nerviosas amielínicas tienen un diámetro reducido y, por lo general, algunas están recubiertas por una sola VAINA DE MIELINA. Conducen impulsos de baja velocidad, y representan la mayoría de las fibras nerviosas periféricas y autónomas, aunque también se han encontrado en el ENCÉFALO y la MÉDULA ESPINAL.
Descriptor Portuguese: Fibras Nervosas Amielínicas
Descriptor French: Neurofibres non-myélinisées
Entry term(s): C Fiber
C Fibers
Nerve Fiber, Unmyelinated
Unmyelinated Nerve Fiber
Unmyelinated Nerve Fibers
Tree number(s): A08.675.542.756
A11.671.501.756
RDF Unique Identifier: https://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.
Allowable Qualifiers: CH chemistry
CL classification
DE drug effects
EN enzymology
IM immunology
ME metabolism
MI microbiology
PA pathology
PH physiology
PS parasitology
RE radiation effects
TR transplantation
UL ultrastructure
VI virology
Previous Indexing: Nerve Fibers (1976-2002)
Public MeSH Note: 2003; for C FIBERS see NERVE FIBERS 1977-2002
History Note: 2003; for C FIBERS use NERVE FIBERS 1977-2002
Related: Gray Matter MeSH
DeCS ID: 36512
Unique ID: D036421
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 2003/01/01
Date of Entry: 2002/07/03
Revision Date: 2014/06/10
Nerve Fibers, Unmyelinated - Preferred
Concept UI M0409789
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.
Preferred term Nerve Fibers, Unmyelinated
Entry term(s) Nerve Fiber, Unmyelinated
Unmyelinated Nerve Fiber
Unmyelinated Nerve Fibers
C Fibers - Narrower
Concept UI M0014646
Scope note Type C fibers are peripheral unmyelinated nerve fibers in which several AXONS are surrounded by a single Schwann cell (SCHWANN CELLS). They constitute more than half of the peripheral sensory nerve fibers as well as all the postganglionic autonomic fibers.
Preferred term C Fibers
Entry term(s) C Fiber



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