614 



THE CRANIAL NERVES. 



(a) The buccal branches are directed across the masseter muscle to the angle of 

 the mouth ; supplying the muscles, they communicate with the temporo-facial divi- 

 sion, and on the buccinator muscle join with filaments of the buccal branch of the 

 lower maxillary nerve. 



Fig. 413. 



Fig. 413. SUPERFICIAL DISTRIBUTION OP THE FACIAL, TRIGEMINAL, AND OTHER NKRVES 

 OF THE HEAD (from Sappey after Hirschfeld and Leveille). f 



a, References to the Facial Nerve. 1, trunk of the facial nerve after its exit from the 

 stylo-mastoid foramen ; 2, posterior auricular branch ; 3, filament of the great auricular 

 nerve uniting with the foregoing ; 4, twig to the occipitalis muscle ; 5, twig to the posterior 

 auricular muscle ; 6, twig to the superior auricular muscle ; 7, branch to the digastric; 8, 

 that to the stylo-hyoid muscle ; 9, superior or temporo-facial division of the pes anseririus ; 

 10, temporal branches; 11, frontal ; 12, palpebral or orbital ; 13, nasal or infraorbital ; 

 14, buccal ; 15, inferior or cervico-facial division of the nerve ; 16, labial and mental 

 branches ; 17, cervical branches. 



by References to the Fifth Nerve. 18, temporo-auricular nerve (of the inferior maxillaiy 

 nerve) uniting with tin- facial, giving anterior auricular and parotid branches, and ascend- 

 ing to the temporal region ; 19, external frontal or supra-orbital nerve ; 20, internal 

 frontal ; 21, palpebral twigs of the lachrymal ; 22, terminal branches of the infra- 

 trochlear ; 23, malar twig of the orbito-malar ; 24, external nasal twig of the ethmoidal ; 

 25, infraorbital nerve ; 26, buccal nerve uniting with branches of the facial ; 27, labial 

 and mental branches of the inferior dental nerve. 



c, Cervical Nerves. 28, great occipital nerve from the second cervical ; 29, great 

 auricular nerve from the cervical plexus ; 30, lesser occipital ; 31, another branch with a 

 similar distribution ; 32, superficial cervical, uniting by several twigs with the facial. 



