130 



Cranial Nerves. 



474. The Linual Nerve and the Submaxillar 



Ganglion, 



1)) The gustatory or 1 i n g u a 1 n e r v e, ^Xcrvus Unyualis, unites 

 with the Chorda tynipanl and passes with it along the outer side of the 

 J/1 stylo-f/Iossus and J/". Jiyo-glossus obliquely forwards and downwards; it 

 sends branches to the Arciis palato-glossus, to the mucous membrane at 

 the floor of the mouth, to the submaxillary ganglion and to the sub- 

 lingual gland. Finally it is divided into from eight to ten lingual or 

 terminal branches, which perforate the muscular structure of the tongue 

 and terminate in the papillae (with the exception of the Papillae vallatae 

 and many P. filiformes). 



c) The inferior dental nerve s. Nervus mandibularis, situated 

 behind the N. linyucdi*, and connected with it by one or two filaments, 

 passes along the outer side of the 3L pterygoideus interims to the inner 

 opening of the inferior dental canal ; its branches are : the in y 1 o - h y o i d, 

 N. mj/lo-liijoidnis , for the mylo-hyoid muscle and anterior belly of the 

 digastric; the dental branches which supply the molar and bicuspid 

 teeth together with the adjoining part of the gum; the incisor branch, 

 which supplies filaments to the canine and incisor teeth; finally the 

 mental branch, N. me.ntcdis, which emerges from the bone by the 

 mental foramen, and supplies the integument, mucous membrane and 

 muscles of the lower lip. 



