Postganglionic fibers
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Nerve: Postganglionic fibers
Sympathetic connections of the ciliary and superior cervical ganglia.
Latin neurofibrae postganglionicae
In the autonomic nervous system, fibers from the ganglion to the effector organ are called postganglionic fibers.
[edit] Neurotransmitters
The neurotransmitters used for postganglionic fibers differ:
In the parasympathetic division, they are cholinergic (that is, they use acetylcholine as their neurotransmitters.)
In the sympathetic division, most are adrenergic (that is, they use norepinephrine as their neurotransmitters.) One exception of this is the sympathetic innervation of sweat glands, which uses acetylcholine as a neurotransmitter at both pre and post ganglionic synapses.
[edit] See also
[edit] External links
Diagram of postganglionic neuron and its synapse at sns-web.org Diagram at University of Waterloo
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