preganglionic fibers

(redirected from Autonomic fibers, preganglionic)

pre·gan·gli·on·ic fi·bers

a fiber the cell body of which is located in an autonomic nucleus in the spinal cord or brainstem and the axon of which terminates in an autonomic (motor) ganglion; found in nerves conveying sympathetic or parasympathetic fibers.
Farlex Partner Medical Dictionary © Farlex 2012
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