Postganglionic nerve fibers

In the autonomic nervous system, fibers from the ganglion to the effector organ are called postganglionic fibers.

Postganglionic nerve fibers
Sympathetic connections of the ciliary and superior cervical ganglia.
Latinneurofibrae postganglionicae
Anatomical terms of neuroanatomy
[edit on Wikidata]


The neurotransmitters of postganglionic fibers differ:

See also


  1. ^ Noback C, Ruggiero DA, Demarest RJ, Strominger NL (2005). The Human Nervous System: Structure and Function (6th ed.). New Jersey: Humana Press. ISBN 978-1588290403.
  2. ^ Costanzo, Linda (2014). BRS Physiology (6th ed.). LWW. ISBN 9781451187953.

External links

postganglionic, nerve, fibers, autonomic, nervous, system, fibers, from, ganglion, effector, organ, called, postganglionic, fibers, sympathetic, connections, ciliary, superior, cervical, ganglia, detailsidentifierslatinneurofibrae, postganglionicaeta98a14, 010. In the autonomic nervous system fibers from the ganglion to the effector organ are called postganglionic fibers Postganglionic nerve fibersSympathetic connections of the ciliary and superior cervical ganglia DetailsIdentifiersLatinneurofibrae postganglionicaeTA98A14 2 00 010FMA76569Anatomical terms of neuroanatomy edit on Wikidata Acetylcholine Norepinephrine Contents 1 Neurotransmitters 2 See also 3 References 4 External linksNeurotransmitters EditThe neurotransmitters of postganglionic fibers differ In the parasympathetic division neurons are cholinergic That is to say acetylcholine is the primary neurotransmitter responsible for the communication between neurons on the parasympathetic pathway In the sympathetic division neurons are mostly adrenergic that is epinephrine and norepinephrine function as the primary neurotransmitters Notable exceptions to this rule include the sympathetic innervation of sweat glands and arrectores pilorum muscles where the neurotransmitter at both pre and post ganglionic synapses is acetylcholine Another notable structure is the medulla of the adrenal gland where chromaffin cells function as modified post ganglionic nerves Instead of releasing epinephrine and norepinephrine into a synaptic cleft these cells of the adrenal medulla release the catecholamines into the blood stream as hormones 1 Like other components of the sympathetic nervous system all of these exceptions are still stimulated by cholinergic preganglionic fibers In both divisions of the autonomic nervous system postganglionic neurons express nicotinic acetylcholine receptors to receive signals from preganglionic neurons 2 See also EditPreganglionic fibers Nerve fiberReferences Edit Noback C Ruggiero DA Demarest RJ Strominger NL 2005 The Human Nervous System Structure and Function 6th ed New Jersey Humana Press ISBN 978 1588290403 Costanzo Linda 2014 BRS Physiology 6th ed LWW ISBN 9781451187953 External links Edit This neuroanatomy article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Postganglionic nerve fibers amp oldid 1074399870, wikipedia, wiki, book, books, library,


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