FACIAL NERVES. 23 



lower lip and chin. The superior and inferior coronary 

 branches are given off separately, or by a common trunk; 

 they supply the upper and lower lip, lying "between the 

 orbicularis oris muscle and the mucous membrane, and 

 inosculate with the corresponding branches of the opposite 

 side. The superior coronary sends a branch to the septum 

 of the nose. The facial continues up beside the nose under 

 the name of the lateralis nasi, its termination being called 

 the angular artery, and anastomoses with the nasal branch 

 of the ophthalmic. The facial artery is apt to be irregular, 

 and is seldom symmetrical on the two sides of the face. 



The facial vein accompanies the facial artery on its outer 

 side, and, uniting with the temporal vein, terminates in the 

 internal jugular vein. 



The TRANSVERSE FACIAL ARTERY is a branch of the 

 temporal arteiy ; it emerges at the anterior border of the 

 parotid gland, and lies beside the parotid duct ; it anasto- 

 moses with the facial arter}^ and supplies the muscles 

 and integument. It occasionally arises from the external 

 carotid. 



FACIAL NERVES. 



If a special part is not to be obtained for the dissection of the facial 

 nerves, they may be examined on a side of the face reserved for that 

 purpose, or, if sufficiently preserved, in connection with the dissec- 

 tion already made. Some of the nerves are- concealed by the 

 parotid gland, but a greater part are external to it ; the external 

 branches are to be followed out one by one, and, to see those within 

 the gland, it must be removed piece by piece while tracing them 

 backward. 



The FACIAL NERVE is a portion of the seventh cranial 

 nerve, and issues from the skull at the stylo-mastoid fora- 

 men ; it divides near the ramus of the jaw into two 

 divisions, the temporo-facial and the cervico-facial ; the 

 posterior auricular branch, which was dissected with the 

 external ear, is given off close to the skull, and turns 

 upward in front of the mastoid process to supply the 

 attrahens and attollens aurem and the posterior belly of 

 the occipito-frontalis muscle. 



The temporo-facial division gives off a large number of 

 filaments, which expand upon the side of the face as 

 temporal, malar, and infra-orbital branches, anastomosing 

 freely with the supra-orbital and infra-orbital branches of 

 the fifth cranial nerve. 



The cervico-facial division is smaller than the pre- 



