DeCS

Descriptor English:

Autonomic Fibers, Preganglionic

Descriptor Spanish:

Fibras Autónomas Preganglionares

Spanish from Spain

Descriptor

fibras autónomas preganglionares

Scope note:

FIBRAS NERVIOSAS que se proyectan dese el sistema nervioso central hacia los GANGLIOS AUTONÓMICOS. En la división simpática la mayor parte de las fibras preganglionares se originan en las neuronas de la columna intermediolateral de la MÉDULA ESPINAL, salen a través de las raíces ventrales desde los segmentos superiores torácicos hacia los lumbares inferiores y se proyectan hacia los ganglios paravertebrales, donde terminan en SINAPSIS o continúan a través de los NERVIOS ESPLÁCNICOS hasta los ganglios prevertebrales. En la división parasimpática las fibras se originan en las neuronas del tronco encefálico y de la médula espinal sacra. En ambas divisiones el principal transmisor es la ACETILCOLINA aunque también pueden liberarse péptidos cotransmisores.

Descriptor Portuguese:

Fibras Autônomas Pré-Ganglionares

Descriptor French:

Neurofibres autonomes préganglionnaires

Entry term(s):

Autonomic Fiber, Preganglionic
Fiber, Preganglionic Autonomic
Fibers, Preganglionic Autonomic
Preganglionic Autonomic Fiber
Preganglionic Autonomic Fibers

Tree number(s):

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

RDF Unique Identifier:

https://id.nlm.nih.gov/mesh/D001339

Scope note:

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.

Annotation:

do not confuse with AUTONOMIC FIBERS, POSTGANGLIONIC

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

Concept UI	M0002009
Scope note	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.
Preferred term	Autonomic Fibers, Preganglionic
Entry term(s)	Autonomic Fiber, Preganglionic Fiber, Preganglionic Autonomic Fibers, Preganglionic Autonomic Preganglionic Autonomic Fiber Preganglionic Autonomic Fibers

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