preganglionic fibers

(redirected from Preganglionic parasympathetic fibers)

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.
References in periodicals archive ?
The preganglionic parasympathetic fibers of the 3rd nerve which are transported by the nerve to the inferior oblique muscle arrive to the ciliary ganglion and from here the post-ganglionic parasympathetic fibers emerge.
the chorda tympani nerve, which supplies taste fibers to the anterior two-thirds of the tongue, preganglionic parasympathetic fibers to the submandibular gland, and postganglionic fibers to the submandibular and sublingual glands
The innervation of the submandibular gland is similar to that of the parotid gland; the difference involves preganglionic parasympathetic fibers that originate in the superior salivatory nucleus and travel along the facial nerve and the chorda tympani to the submandibular ganglion.