132 



Cranial Nerves. 



476. The Vidiau Nerve after E. Bischoff. 



b) The V id i an nerve, Nervus Vidlanus, consists of two bundles, 

 composed of grey and white nerve fibres; it passes through the Vidian 

 canal from before backwards, and divides at its posterior extremity into 

 two. The grey bundle goes to or rather comes from the Plexus caroticus 

 of the sympathetic, and is called the deep petrosal nerve, N. ptetrosus 

 jtrofundus ; the w h i t e b u n d 1 e forms the great superficial 

 petrosal, N. pctrosus superficialis major; this latter passes through 

 the Fibrocartilago lastlaris into the cranium, enters the Hiatus canal is 

 FaUopiae and joins the geniculate ganglion of the facial nerve. 



c) The p h a r y n g e a 1 b r a n c h e s, Ifami pharynyri, to the mucous 

 membrane of the upper portion of the pharynx. 



d) The Nervi scpti, narlum to the upper wall of the posterior nares 

 and Septum narium : the longest of these is called n a s o - p a 1 a t i n e 

 n e r v e, JVeryus naso-palatinus Scarpac, and runs along the Septum narium 

 to the Canal in naso-palatinus and through it to the hard palate and gums 

 of the incisor teeth. 



e) The posterior nasal n e r v e s ? Ncrvi, nasales poster lores, to 

 the ethmoidal turbinated bones and the posterior parts of the outer 

 wall of the nares. 



f ) The descending palatine nerves, N. palatlnl descen- 

 dentes, emerge through the posterior palatine foramina, and supply the 

 hard and soft palate, the uvula, the M. Icvator palati and M. azygos 

 uvulae. The largest of them, the anterior palatine, Ncrvus palatlnus 

 anterior, emerges upon the mucous membrane of the hard palate, and 

 finally communicates with the N. naso-palatinus Scarpac. 



