496 NEUROLOGY. 



temporo-maxillary articulation, and is distributed to the masseter 

 muscle. It gives off branches to the temporal muscle. 



The buccal nerve is directed forwards, traverses the external 

 pterygoid muscle, and is distributed to the buccinator muscle and 

 to the mucous membrane of the cheek, descending to the com- 

 missures of the lips and the labial glands. In its course it gives 

 small bi'anches to the external pterj^goid muscle, a branch (the 

 anterior deep temporal nerve) to the temporal muscle, and branches 

 to the molar glands. The branches to the pterygoid and temporal 

 muscles are for the most part motor, the others sensory. 



The pterygoid nerve supplies the pterygoid muscles. 



The suhzygomatic or superficial temporal nerve winds round 

 the ramus of the lower jaw, and, passing between the parotid 

 gland and the posterior border of the jaw, joins the nerves of the 

 seventh pair. In its course it gives off twigs to the guttural 

 pouch, parotid gland, and teguments of the temporal region. 



The lingual, considered by some authorities as the gustatory 

 or nerve of the special sense of taste, is the principal branch of 

 the inferior maxillary ; its course lies between the ramus of the 

 jaw and the pterygoid muscles, round which it winds antei'iorly, 

 to reach the base of the tongue, along the side of which, under 

 the mucous membrane, it runs to the tip, giving off in its course 

 numerous branches to the lingual papillas, the mucous membrane 

 of the mouth and gums, and the sublingual gland. The lingual 

 receives the chorda iympani branch of the facial, and communi- 

 cates with terminal branches of the twelfth nerve ; it also sends 

 a branch to the submaxillary ganglion. 



The mylo-hyoidean nerve distributes branches to the mylo- 

 hyoideus and digastricus muscles, and twigs to the submaxillary 

 glands. 



The dental branches are given off in the dental canal, to 

 supply the teeth of the lower jaw ; one series supplying the 

 molars, the other the front teeth. 



The mental or terminal branches of the nerve, issuing from 

 the mental foramen, are distributed to the lower lip, and com- 

 municate with the facial nerve. 



The sympathetic ganglia, communicating with the fifth pair, 

 are the ophthalmic or lenticular, the spheno-palatioe or Meckel's, 

 and the otic. (See Sympathetic System.) 



