NERVES OF THE COCHLEA. 



Fi?. 476. 



663 



Fig. 476.— General View op the Mode of Distribution op the Cochlear Nerve, 



ALL the other PARTS HAVING BEEN REMOVED. 



spiralis modioli, already mentioned. Here eacli nerve fibre most pro- 

 bably has a ganglion-cell interpolated in its course. From the outer 

 side of the ganglion, the fibres, still possessiug the dark outline, pass 



Fis. 477. 



I 25 Isp 



Pin- 477 — Distribution op the Cochlear Nerves in the Lahina Spiralis (after 



Henle). 

 A, part of tlae modiolus and spiral lamina, viewed from the base, showing the cochlear 

 nerves forming a network ; 1, filaments of the nerve issuing from the tractus spiralis fora- 

 minulosus ; 2^ branches of the nerve entering by the central canal of the modiolus ; 3, 

 mde plexus in the bony lamina spiralis ; 4, close plexus at its border. B, part of the 

 nerves extracted and more highly magnified ; 2, twigs of the nerve from the modiolus 

 close to the lamina spiralis ossea ; gs, spiral ganglion ; fs, nerve-fibres running spirally 

 along the outer part of the ganglion swelling ; 3, wide plexus ; 4, close plexus of nerve- 

 fibres as in A, 



