. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. 584 COMPAKATIVE PHYSIOLOaT. Gustatory impulses from the anterior end and lateral edges of the tongue are conveyed by th-e lingual (gustatory) branch of this nerve. Many are of opinion, however, that the fibers of the chorda tympani, which afterward leave the lingual to unite with the facial nerve, alone con- vey such impressions. The subject can not be regarded as quite settled. Tactile sensibility in the tongue is very pronounced, as we have all experi- enced w
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. 584 COMPAKATIVE PHYSIOLOaT. Gustatory impulses from the anterior end and lateral edges of the tongue are conveyed by th-e lingual (gustatory) branch of this nerve. Many are of opinion, however, that the fibers of the chorda tympani, which afterward leave the lingual to unite with the facial nerve, alone con- vey such impressions. The subject can not be regarded as quite settled. Tactile sensibility in the tongue is very pronounced, as we have all experi- enced when a tooth, etc., has for some reason presented an tuiusual surface quality, and become a source of con- stant offense to the tongue. The ganglia of the fifth nerve, so far as the functions of their cells are concerned, are enigmatical at present. They are doubtless in some sense tro- phic at least. With each of these are nerve connections (" roots " of the gan- glia), which seem to contain different kinds of fibers. These ganglia are connected with the main nerve-centers by both afferent and efferent nerves, and also with the sympathetic nerves themselves. Some regard the ganglia as the representatives of the sympa- thetic system within the cranium. I. The Ciliary {Ophthalmic, Lerir ticular) Ganglion. â Its three roots are : 1. From the branch of the third nerve to the inferior oblique muscle (motor root). 2. From the aasal branch of the ophthalmic division of the fifth. 3. From the carotid plexus Fig. 426.âUnipolar cell from of the S3Tnpathetic. The efferent Gasserian ganglion (after â¢, ^ j. ⢠⢠i â j Schwaibe) iv if iV, nuclei branches pass to the ins, are derived rngS'anJde^ifXS*" chiefly from the sympathetic, and cause dilatation of the pupil. There are also vaso-motor fibers to the choroid, iris, and retina. The afferent fibers are sensory, passing from the conjunctiva, cor- nea, etc. II. The Nasal or Spheno-Palatine Ganglion.âThe motor. P
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