Diseases of the nervous system : a text-book of neurology and psychiatry . hen pass ventrally and emerge at the posteriorborder of the pons, lateral to the olive, where they lie in close relationto the fifth and eighth nerves in the cerebellopontine angles. They DISEASES OF THE FACIAL NERVE 217 are finally distributed (three ventral nuclei) to the muscles of expressionof the face, to the muscles of the external ear, and of the stapedius,the posterior belly of the digastric and the stylohyoid. The frontalis,corrugator supercilii, and orbicularis palpebrarum are innervated byfibers coming from t
Diseases of the nervous system : a text-book of neurology and psychiatry . hen pass ventrally and emerge at the posteriorborder of the pons, lateral to the olive, where they lie in close relationto the fifth and eighth nerves in the cerebellopontine angles. They DISEASES OF THE FACIAL NERVE 217 are finally distributed (three ventral nuclei) to the muscles of expressionof the face, to the muscles of the external ear, and of the stapedius,the posterior belly of the digastric and the stylohyoid. The frontalis,corrugator supercilii, and orbicularis palpebrarum are innervated byfibers coming from the dorsal group. In its peripheral distribution the nerve passes through the facialcanal in the temporal bone (acqueduct of Fallopius), coming intointimate relations with other cranial nerves, eighth, pars intermedia. Kueleus Salioatorlus Nucleus ofFacial N. ^Afferent divi. of ,ending inGlossopharyngealNucleus Superior Maxillary Superficial Petrosal\ L_^ External —-^;- --A J^V- Spheno- Superficial Petrosal^^^^ \r^ palatine \> i Ganglion. To AuricularBranch of tagus N. PostAuricular Br.^^ To DigastricTo Stijlo-hyo Efferent (excito-glandular) fibers to submaxillary and sublingual ganglia and glands Fig. 105.—Plan of the facial and intermedius nerves and their communications with other nerves. (Gray.) and also forming sympathetic nerve associations of more than usualcomplexity, a study of which is of value in the local diagnosis of lesionsof this nerve and contiguous parts. (See Fig. 104.) The anatomy of the possible sensory portion of the nerve hasnot been definitely homologized. The comparative studies of Herrick,Johnson fail as yet to show sensory components in forms higherthan the amphibia.^ 1 Jour. Comp. Neurol, 1914. 218 SENSORI-MOTOR NEUROLOGY—CRANIAL NERVES By some its chief ganglion is considered to be the geniculate, whichis thought to contain the efferent fibers from the receptors located inthe auricle of the ear, the floor of the e
Size: 1625px × 1537px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectmentaldisorders
