. Diseases of the nervous system : for the general practitioner and student. two-thirds of the tongue are supplied by thechorda tympani, the posterior third bythe ninth nerve, the soft palate by abranch fiom Meckels ganglion. Thefacial nerve may be regarded as amixed nerve. It has a ganglion (gen-iculate). The sensory fibers are: the great superficial petrosal, the small superficial petrosal and the externalpetrosal supplying the carotid plexus of the sympathetic. The geniculateganglion sends fibers running with the seventh nerve in the Fallopiancanal, also fibers anastomosing with the fifth a
. Diseases of the nervous system : for the general practitioner and student. two-thirds of the tongue are supplied by thechorda tympani, the posterior third bythe ninth nerve, the soft palate by abranch fiom Meckels ganglion. Thefacial nerve may be regarded as amixed nerve. It has a ganglion (gen-iculate). The sensory fibers are: the great superficial petrosal, the small superficial petrosal and the externalpetrosal supplying the carotid plexus of the sympathetic. The geniculateganglion sends fibers running with the seventh nerve in the Fallopiancanal, also fibers anastomosing with the fifth and eighth nerves. The sen-sory fibers of the seventh nerve are represented in the auditory nerve, thetympanic plexus (supplied by the petrosal nerves), the auricle and theexternal auditory canal. R. Hunt (/. Nerv. and Ment. Dis., 1907) has brought out a syndromeof the sensory branches of the seventh nerve occuriing in facial symptoms are: (1) pain in the ear and mastoid region. The pain maybe of neuralgic character. Anaesthesia or hyperesthesia in the region of. Fig. 130. 4o8 DISEASES OF CRANIAL NERVES concha and external auditory meatus, also hypaesthesia in the chordatympani distribution. (2) Herpetic otalgia, herpes oticus. The eruptionis distributed over the tympanum, external auditory canal and concha.(This is the herpetic area of the geniculate ganglion.) (3) Reflex facialtwitchings and spasms. The hearing is sometimes affected. There may be also hyperacuityof hearing. The electrical contractility of the paralyzed muscles is very in some cases (mild) it is normal, in others it is altered quantita-tively and qualitatively. Reactions of degeneration are present. Among the rare symptoms of peripheral facial palsy may be mentionedabsence or diminution of sweating of the skin on the affected side. This is observed in the severe disturbances aresometimes observed. Course, Termination, Prog-nosis.—Facial palsy due to ob-stetrical caus
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnervous, bookyear1913
