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

• Preganglionic fibers

[edit] External links

• Diagram of postganglionic neuron and its synapse at sns-web.org
• Diagram at University of Waterloo

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