preganglionic
1
9.4
Located before a small group of nerve cells called a ganglion in the nervous system
- adjective
- /ˌpriːˌɡæŋɡliˈɒnɪk/
- Specialized
:
preganglionar
- This preganglionic neuron projects to an autonomic ganglion.
- preganglionic fibers
Examples
-
But preganglionic fibers and postganglionic nerves aren't anything alike.
-
The preganglionic selective section spares the fibers of light touch and eliminates the complication of anesthesia dolorosa.
Academic text (1996) -
The preganglionic neuron is located in either the brain or the spinal cord.
Surface Forms
preganglionic positive
Morphology
preganglionic = ganglionic (transparent) = pre + ganglion + ic
The meaning follows directly from adding 'pre-' meaning 'before' to 'ganglionic' meaning 'relating to a ganglion'.
Etymology
Preganglionic breaks into pre- meaning 'before' and ganglion meaning 'a knot or small group of nerve cells'. So preganglionic describes nerve fibers or neurons that are 'before' a ganglion.