TEE COMMON CAROTID ARTERIES. 681 



External Carotid Artery. — In its origin, course, and termination, the external carotid 

 comports itself as in animals. It gives rise to six branches : 



1. The superior thyroid, resembling in its distribution the thyro-laryngeal of Solipeds. 



2. The lingual artery, which furnishes a sublingual, and takes the name of ranine at its 

 termination. 



3. The facial artery, which gives off the palatina ascendens, analogous to our pharyngeal, 

 and the submental. 



The two last-mentioned arteries arise separately ; consequently, there is not a glosso-facial 

 in Man as we have seen it in the Horse. 



4. The posterior auricular artery. 



5. The inferior pharyngeal artery. 



6. The occipital. — This vessel represents the occipital of the Horse minm its cerebro-spinal 



ARTERIES OF THE FACE AND HEAD OF MAN. 



1, Common carotid; 2, internal carotid; 3, external carotid; 4, 4, occipital artery 5 superior 

 thyroid artery ; 6, trapezius ; 7, lingual artery ; 8, sterno-mastoid ; 9, facial artery ; 10, temporal 

 artery, dividing into anterior and posterior branches; 11, submental branch; 12, transverse 

 facial artery; 13, inferior labial branch ; 15, inferior coronary, and, 17, superior coronary branch; 

 19, lateral nasal branch ; 21, angular branch. 



branch. It gives off a mastoid artery, and terminates in the muscles of the neck and on the 

 posterior aspect of the cranium. The cerebro-spinal branch is replaced by the termination of 

 the vertebral artery, which forms on the inferior face of the medulla oblongata the basilar 

 artery, the disposition of which is identical with that already described. 



The superficial temporal artery, and the internal maxillary artery, constitute the termination 

 of the external carotid. 



The internal maxillary is directed towards the spheno-palatine or nasal foramen, into 

 which it passes and terminates by the spheno-spinous artery. It does not give off the 



