348 



AVERS. 



Fig. II. Seen from in front. 



Fig. 12. Seen from behind. 



a-b., a piece of the brain cortex — at b, the medulla wall. The portion central 



roots are figured, extending above this cortical strip. 

 c, lateral or cochlear root. 

 v., medial or vestibular root. 

 f., terminal portion of the facial root. 



1, trunk of the vestibular nerve. 



2, vestibular ganglion. 



3, the vestibular nerve branch common to the two ampulla;. It bifurcates 



4, into ramulus ampullae anterioris, 



5, and ramulus ampullae externse. 



6, the branch to the maculae recessus utriculi, showing its broadening out on 



the surface of the septum of the vestibule. 



7, the cochlear ganglion. 



8, trunk of the cochlear nerve; with i., the intercranial ganglion, z-z, the in- 



termediate ganglion. A, ramulus ampullae posterioris. B, ramulus macu- 

 lae sacculi. 



9, root of the facial nerve above the (lo) ganglion geniculi. 



10, ganglion geniculi. 



11, trunk of the facial, cut through below the genu. 



