Postganglionic fibers
From Wikipedia, the free encyclopedia
| Nerve: Postganglionic fibers | ||
|---|---|---|
| Sympathetic connections of the ciliary and superior cervical ganglia. | ||
| Latin | neurofibrae postganglionicae | |
| Dorlands/Elsevier | n_06/12568789 | |
In the autonomic nervous system, fibers from the ganglion to the effector organ are called postganglionic fibers.
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.
- Diagram of postganglionic neuron and its synapse at sns-web.org
- Diagram at University of Waterloo
