Nerve fibers which project from the central nervous system to autonomic ganglia. In the sympathetic division most preganglionic fibers originate with neurons in the intermediolateral column of the spinal cord, exit via ventral roots from upper thoracic through lower lumbar segments, and project to the paravertebral ganglia; there they either terminate in synapses or continue through the splanchnic nerves to the prevertebral ganglia. In the parasympathetic division the fibers originate in neurons of the brain stem and sacral spinal cord. In both divisions the principal transmitter is acetylcholine but peptide cotransmitters may also be released. [ MESH:A08.663.542.122 http://en.wikipedia.org/wiki/Preganglionic_nerve_fibers ]
Synonyms: preganglionic nerve fiber
Term information
- NCIT:C12624
- Wikipedia:Preganglionic_nerve_fibers
- MESH:D001339
- FMA:5923
human_reference_atlas
Term relations
- nerve fiber and extends_fibers_into some central nervous system and extends_fibers_into some autonomic ganglion
- trigeminal nerve fibers
- nerve fiber
- extends_fibers_into some central nervous system
- extends_fibers_into some autonomic ganglion
- part of some autonomic nerve