492 



THE BLOOD-VASCULAR SYSTEM. 



with its fellow, the nasal branch of the ophthalmic, the inferior artery of the 

 septum, the artery of the ala, and the infra-orbital. 



The angular artery is the termination of the trunk of the facial ; it ascends to 

 the inner angle of the orbit, imbedded in the fibres of the Levator labii superioris 

 alseque nasi, and accompanied by a large vein, the angular ; it distributes some 

 branches on the cheek which anastomose with the infra-orbital, and after supplying' 

 the lachrymal sac and Orbicularis palpebrarum muscle, terminates by anastomos- 

 ing with the nasal branch of the ophthalmic artery. 



Internal jugular rein. 

 Occipital artery. 



Internal maxil- 

 lary artery. 



Facial 

 nerve. 



Lingual 



nerve. 

 Inferior dental 



nerve. 



Mylo-hyoid 



SUPERIOR OBLIQUE 

 MUSCLE. 



Vertebral artery. 



INFERIOR OBLIQUE 

 MUSCLE. 



Fiieumogastric 

 nerve. 



Hypo-glossal 



nerve. 



Internal carotid 

 artery. 



STERNO-MASTOID 

 MUSCLE. 



Superior Ilii/roid 



artery. 



External carotid 

 artery. 



FIG. 286. The occipital artery and its relations. (From a dissection by Mr. Gerald S. Hughes.) 



The anastomoses of the facial artery are very numerous, not only with the 

 vessel of the opposite side, but, in the neck, with the sublingual branch of the 

 lingual ; with the ascending pharyngeal ; with the posterior palatine, a branch of 

 the internal maxillary, by its inferior or ascending palatine and tonsillar branches ; 

 on the face, with the mental branch of the inferior dental as it emerges from the mental 



