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HANDBOOK OF ANATOMY 



buccal, which supplies the skin over the buccinator muscle and 

 the mucous membrane inside the cheek; (b) the auriculo- 

 temporal, which supplies the skin over the temple and the 

 scalp just above ; (c) the inferior dental, which supplies the 

 lower teeth ; (d) the lingual, which supplies the mucous 

 membrane covering the anterior two-thirds of the tongue; 

 (e) the mental, which supplies the skin over the chin. 



Trigeminal 

 nerve 



/"Lachrymal 



Ophthalmic -j Frontal 



^Nasal 



/Supraorbital 

 \Supratrochlear 



Superior maxillary 



Inferior maxillary 



Dental 



Malar 



Temporal /Talpebral 



Infraorbital -I Nasal 



Motor branches (Labial 



Buccal 



Auriculo-temporal 



Inferior dental 



Lingual 



Mental 



7. The Facial nerve passes out from the border of the pons 

 varolii and through a canal in the petrous portion of the 

 temporal bone. It emerges from the skull through the stylo- 

 mastoid foramen, and breaks up in the substance of the parotid 

 gland to supply the muscles of the face. Directly after emerg- 

 ing from the stylo-mastoid foramen the nerve gives off three 

 small branches, which supply respectively the stylo-hyoid, pos- 

 terior belly of digastric, and the intrinsic muscles of the ear, and 

 this latter also gives a branch to the posterior belly of occipito- 

 frontalis. 



In the parotid gland the nerve breaks up into two main 

 divisions the temporo- and cervico-facial each of which divides 

 into three sets of branches. This arrangement is called the 

 pes anserinus. 



The Temporo-Faeial divides up into (1) temporal, (2) malar,, 

 and (3) infraorbital branches, which supply the muscles of ex- 

 pression in their vicinity. 



