Organic and functional nervous diseases; a text-book of neurology . a of the face. In Plate XXV., theexit of the three great branches of the sensory portion upon the faceare shown, and in Plate IV., their distribution to the skin is first branch supplies the tear ducts and glands, and any loss of itsfunction is followed by a dryness of the eye. The second branch con-trols the sensation of the mucous membrane of the nose and mouth, anddryness of these parts accompanies this injury. The second and third 654 THE CBANIAL NEBVES AND THEIB DISEASES. branches contain all the fibres concerne
Organic and functional nervous diseases; a text-book of neurology . a of the face. In Plate XXV., theexit of the three great branches of the sensory portion upon the faceare shown, and in Plate IV., their distribution to the skin is first branch supplies the tear ducts and glands, and any loss of itsfunction is followed by a dryness of the eye. The second branch con-trols the sensation of the mucous membrane of the nose and mouth, anddryness of these parts accompanies this injury. The second and third 654 THE CBANIAL NEBVES AND THEIB DISEASES. branches contain all the fibres concerned in taste, and hence lesion ofthese parts results in the loss of this sense. The vasomotor and trophicfunctions of the fifth nerve are important, and trophic symptoms areexceedingly common in cases of any inj ury of the fifth nerve. Whetherthese are due to the suspension of sensation may be a matter of discus-They consist of ulcerations of the cornea, falling of the teeth. sion. changes in the hard gums and in the mucous membrane of the mouth Fig. 279. Fig.
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