250 INFERIOR PHARYNGEAL. OCCIPITAL. 



muscles called Depressor Anguli Oris, and Orbicularis Oris, 

 into the substance of the lip, and anastomoses with its fellow of 

 the opposite side. 



The Coronary Artery of the upper lip passes under the 

 zygomaticus major and the orbicularis, and very near the mar- 

 gin of the upper lip internally. It also anastomoses freely with 

 its fellow on the opposite side. These anastomoses are fre- 

 quently so considerable that the arteries on one side can be well 

 filled by injecting those of the other. The coronary branches, 

 as well as the main trunk of the facial artery, observe a serpen- 

 tine or tortuous course ; in consequence of which they admit of 

 the motions of the cheeks and lips, which they would greatly 

 impede, if they were straight. 



From the upper coronary artery a branch continues in the 

 direction of the main trunk of the facial artery, by the side of 

 the nose, which extends upwards, sending off small branches in 

 its course, and finally terminates about the internal angle of the 

 eye and the forehead, where it has received the name of the an- 

 gular artery. 



4. The Inferior Pharyngeal 



Is a very small artery ; it rises posteriorly from the external 

 carotid, opposite to the origin of the sublingual, and passes 

 upwards to the basis of the cranium. In this course it sends 

 several branches to the pharynx, and to the deep-seated parts 

 immediately contiguous. 



It also sends branches to the first ganglion of the sympathetic 

 nerve, to the par vagum, and to the lymphatic glands of the 

 neck ; and, finally, it enters the cavity of the cranium by the 

 posterior foramen lacerum. 



In some cases it also sends a small branch through the anterior 

 foramen lacerum. 



5. The Occipital Artery 



Arises from the posterior side of the external carotid, nearly 

 opposite to the facial, but sometimes higher up ; it ascends 

 obliquely, and passes to the back part of the cranium, between 



