Autonomic Fibers, Preganglionic (also known as Autonomic Fiber, Preganglionic, Fiber, Preganglionic Autonomic): 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
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 classification
A08.675.127.500.060
A08.675.542.234.060
A08.800.050.050.060
A08.800.800.060.060
A11.671.188.500.060
A11.671.501.234.060
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Common questions about Autonomic Fibers, Preganglionic
What does Autonomic Fibers, Preganglionic mean in medicine?
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. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Autonomic Fibers, Preganglionic known by any other names?
Yes. Autonomic Fibers, Preganglionic is also referred to as Autonomic Fiber, Preganglionic, Fiber, Preganglionic Autonomic, Fibers, Preganglionic Autonomic, Preganglionic Autonomic Fiber in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Autonomic Fibers, Preganglionic sit in the medical classification?
Autonomic Fibers, Preganglionic falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A08.675.127.500.060, A08.675.542.234.060, A08.800.050.050.060). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Autonomic Fibers, Preganglionic?
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