GUSTATORY XERVE. 



607 



front of the dental nerve, and sometimes united to it by a cord which 

 crosses over the internal maxillary artery. It is there joined at an acute 

 angle by the chorda tympani, a small branch connected with the facial 

 nerye, which descends from the inner end of the Glasserian. fissure. It 

 then passes between the internal pterygoid muscle and the lower maxilla, 

 and is inclined obliquely inwards to the side of the tongue, over the 

 upper constrictor of the pharynx, (where this muscle is attached to the 

 maxillary bone,) and above the deep portion of the submaxiliary gland. 

 Lastly, the nerve crosses Wharton's duct, and is continued along the si<le 

 of the tongue to the apex, in contact with the mucous membrane of the 

 mouth. 



(a) Communicating branches are given to the submaxiliary ganglion, at the place 



Fig. 409. 





Fig. 409. VIEW OF THE BRANCHES OP THE INFERIOR MAXILLARY NERVE FROM THE 

 OUTER SIDE (from Sapoej after Hirschfeld and Leveille). f 



The zygoma and ram us of the jaw have been removed, and the outer plate of the jaw 

 taken off so as t<i open up the dental canal ; the lower part of the temporal muscle has 

 been dissected off the bone, and the inasseter muscle turned down. 



1, Masseteric branch, descending to the deep surface of the muscle ; 2, a twig to the 

 temporal muscle ; 5, anterior, and 7, posterior deep temporal nerves ; 3, buccal ; 4, its 

 union with the facial ; 6, filaments given by the buccal to the external pterygoid muscle ; 

 8, auriculo-temporal nerve ; 9, its temporal branches; 10, its anterior auricular branches ; 

 11, its union witli the facial ; 12, gustatory or lingual nerve ; 13, raylo-hyoid nerve ; 14, 

 inferior dental nerve ; 15, its twigs supplied to the teeth; 16, mental branches; 17, branch 

 of the facial uniting with the mental. 



