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Cells > Neurons > Nerve Fibers > Nerve Fibers, Unmyelinated
Nervous System > Neurons > Nerve Fibers > Nerve Fibers, Unmyelinated

Preferred term

Nerve Fibers, Unmyelinated  


  • Topical Descriptor

Broader concept

Entry terms

  • C Fiber
  • C Fibers

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.

History note

  • 2003; for C FIBERS use NERVE FIBERS 1977-2002

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