FACIAL NERVE. 151 



frontal portion of the occipito-frontalis, the orbicnlaiis pal- 

 pebrarum, corrugator supercilii, pyraniidalis nasi, levator 

 labii superioris, levator labii superioris alseque nasi, the dila- 

 tors and compressors of the nose, part of the buccinator, 

 the levator anguli oris, and the zygomatic muscles. In its 

 course, it receives branches of communication from the au- 

 riculo-temporal branch of the inferior maxillary nerve. It 

 joins also with the temporal branch of the superior -maxil- 

 lary and with branches of the ophthalmic. In its course, it 

 thus becomes a mixed nerve, and is distributed in part to 

 integument. 



2. The cervico-facial nerve passes downward and forward 

 to supply the buccinator, orbicularis oris, risorius, levator 

 labii inferioris, depressor labii inferioris, depressor anguli 

 oris, and platysma. 



Summary of the Anastomoses and Distribution of the 

 Facial. In the aquseductus Fallopii, filaments of communi- 

 cation go to Meckel's ganglion and the otic ganglion of the 

 sympathetic. The chorda tympani joins the lingual branch 

 of the inferior maxillary division of the fifth. A branch is 

 also sent to the pneumogastric. After the nerve has passed 

 out by the stylo-mastoid foramen, it sends a communicating 

 branch to the glosso-pharyngeal, and receives a branch from 

 the auricularis magnus. It anastomoses, also, outside of the 

 cranium, with the glosso-pharyngeal. In the course of the 

 nerve, it receives anastomosing filaments from the three 

 great divisions of the fifth. 



It is thus seen that the facial, in its course, receives nu- 

 merous filaments from the great sensitive nerve of the face. 

 Certain of its fibres of distribution go to integument. 



The muscles supplied by the facial are the stapedius, and 

 probably the tensor tympani, of the internal ear, the muscles 

 of the external ear, the occipito-frontalis, the posterior belly 

 of the digastric, the stylo-hyoid, the stylo-glossus, and the 

 palato-glossus. The two great branches of distribution, the 

 temporo-facial and the cervico-facial, are distributed to all of 



