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postganglionic
This is a technical anatomical term used exclusively in medical, biological, and neurological contexts. It describes the segment of a nerve fiber that extends from the ganglion (a cluster of nerve cell bodies) to the target organ or effector. It is almost always used in contrast with "preganglionic," which refers to the fiber leading into the ganglion.
In clinical practice, the term is frequently used when discussing the autonomic nervous system (sympathetic and parasympathetic). For example, a physician might specify whether a neuropathy is preganglionic or postganglionic to determine the exact location of nerve damage and choose the appropriate treatment.
Because it is a specialized scientific term, it is never used in casual conversation or non-academic writing. It functions as a precise descriptor for spatial and functional orientation within a neural circuit.
Meanings
Examples
The postganglionic neuron releases neurotransmitters directly onto the target organ.
We need to distinguish between preganglionic and postganglionic fibers in this slide.
We need to distinguish between preganglionic and postganglionic fibers in this slide.
Postganglionic axons are typically much shorter than their preganglionic counterparts.
Postganglionic axons are typically much shorter than their preganglionic counterparts.
Does the drug target the postganglionic synapse or the cell body?
The sympathetic postganglionic neurons primarily secrete norepinephrine.
The sympathetic postganglionic neurons primarily secrete norepinephrine.
I wonder if the lesion is located in the postganglionic pathway.
The parasympathetic postganglionic fiber is very short and ends near the effector.
Study the postganglionic transmission for the upcoming anatomy exam.