BRANCHES OF FACIAL NERVE. 



255 



and lower eyelids : those in the upper lid join filaments from the lachrymal and 

 supraorbital nerves, and those in the lower lid are connected with filaments from 

 the superior maxillary nerve. Filaments from this part of the facial also communi- 

 cate with the malar branch of the upper maxillary nerve. 



The infraorbital branches (superior bucco-labial), of larger size than the 



Fig. 171. SUPERFICIAL DISTRIBUTION OF THE FACIAL, TRIGEMINAL, AND OTHER NERVES OF THE 

 HEAD. (From Sappey, after Hirschfeld and Leveille.) | 



, Facial Nerve. 1, trunk of the facial nerve after its exit from the stylo-ma.itoid foramen ; 

 posterior auricular branch ; 3, filament of the great auricular nerve uniting with the foregoing ; 4, 

 occipital branch ; 5, auricular branch ; 6, twig to the superior auricular muscle ; 7, nerve to the 

 digastric ; 8, that to the stylo-hyoid muscle ; 9, superior or temporo-facial division of the nerve ; 10, 

 11, temporal branches ; 12, malar ; 13, 14, infraorbital ; 15, inferior or cervico-facial division of the 

 nerve ; 16, mandibular, and above this the buccal branches ; 17, cervical branch. 



6, Fifth Nerve. 18, auriculo-temporal uniting with the facial, giving anterior auricular and parotid 

 branches, and ascending to the temporal region ; 19, 20, supraorbital ; 21, lachrymal ; 22, infra- 

 trochlear ; 23, malar twig of the temporo-malar ; 24, superficial branch of the nasal ; 25, infraorbital ; 

 26, buccal, uniting with branches of the facial ; 27, mental. 



c, Cervical Nerves. 28, great occipital ; 29, great auricular ; 30, 31, small occipital ; 32, superficial 

 cervical. 



others, are almost horizontal in direction, and are distributed between the orbit 

 and mouth. They supply the buccinator and orbicularis oris muscles, the zygo - 

 matici, the elevators of the upper lip and angle of the mouth, and the muscles of 

 the nose. Beneath the elevator of the upper lip these nerves are united in a plexus 

 with the terminal branches of the superior maxillary nerve ; on the side of the nose 

 they communicate with the nasal, and at the inner angle of the orbit with the infra- 

 trochlear nerve. The lower branches of this set are connected with those of the 

 cervico-facial division. 



R 2 



