MeSH definition : 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.;
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.