Wiktionary
a. Located distal or posterior to a ganglion
WordNet
adj. beyond or distal to a ganglion (referring especially to the unmyelinated fibers that originate from cells in autonomic ganglia)
Usage examples of "postganglionic".
The axons of these cell bodies form a second set of fibers, the postganglionic fibers.
These two sets of visceral fibers, the preganglionic and the postganglionic, taken together with the ganglia themselves, make up that portion of the nervous system which is autonomous or, not under the control of the will.
In some cases, the ganglia separating the preganglionic fibers from the postganglionic fibers are actually located within the organ the nerve is servicing.
In that case, the preganglionic fiber runs almost the full length of the total track, whereas the postganglionic fiber is at most just a few millimeters long.
The postganglionic fibers, which must travel the remaining way to the organs they are concerned with, are relatively long.
This is true also of all the preganglionic nerve endings in the autonomic nervous system, but there is a deviation from this norm in connection with the postganglionic nerve endings.
But it appears, among other things, to inhibit the production and liberation of acetylcholine at the postganglionic parasympathetic terminals of the nervous system.
These two sets of visceral fibers, the preganglionic and the postganglionic, taken together with the ganglia themselves, make up that portion of the nervous system which is autonomous — or, not under the control of the will.
In that case, the preganglionic fiber runs almost the full length of the total track, whereas the postganglionic fiber is at most just a few millimeters long.