THE FACIAL NERVE 



but their subsequent course to the brain is still doubtful. 

 According to Ramsay Hunt, they leave the geniculate ganglion 

 in the nervus intermedius, enter the pons and terminate in the 

 upper part of the nucleus of the tractus solitarius (p. 91). 

 According to other authorities, they leave the geniculate 



FIG. 45. Schematic representation of the course of the Taste Fibres. 



Course of taste fibres. 



1. Tongue. 



2. Lingual nerve. 



3. Chorda tympani. 



4. Geniculate ganglion. 



5. Nerve of pterygoid canal (Vidian 



nerve) 



Alternative route. 



6. Spheno-palatine ganglion. 



7. Maxillary nerve. 



8. Semilunar (Gasserian) ganglion. 



9. Trigeminal nerve. 



10. Facial nerve. 



11. Nucleus of tractus solitarius. 



12. Glosso-pharyngeal nerve. 



ganglion by the greater superficial petrosal nerve, by which 

 they are conveyed to the spheno-palatine ganglion (p. 68) ; 

 in this way they reach the maxillary nerve and enter the pons 

 in the sensory root of the trigeminal. 



The secretory fibres are stated to arise in the motor nucleus 

 of the facial, and they run in the facial nerve until they reach 

 the chorda tympani (Fig. 45), by which they are conveyed, 



