IOO ANATOMY AND PHYSIOLOGY FOR NURSES 



The external branches arise from the commencement 

 of the external carotid, within a short distance of each 

 other. The lingual and facial sometimes bifurcate from 

 the common carotid. 



The superior thyroid artery arises from the external 

 carotid; and is distributed to the thyroid gland; it anasto- 

 moses with the vessel of the opposite side, and gives off 

 the following branches: 



Hyoid. Cricothyroid. 



Superior laryngeal. Muscular. 



The lingual artery ascends obliquely from its origin 

 parallel with the hyoid bone, and directly forward, taking 

 the name ranine artery, where it inosculates with the 

 opposite side; it gives off the following branches: hyoid, 

 dorsalis linguae, sublingual, and ranine. 



The facial artery arises immediately above the lingual, 

 and a short distance above the great cornu of the hyoid 

 bone. It is embedded in the submaxillary gland, curves 

 around the lower jaw at the inferior angle of the masseter 

 muscle, ascends to the angle of the mouth, and terminates 

 at the inner angle of the eye, under the name of the angular 

 artery. 



The facial artery is tortuous in its course over the buc- 

 cinator muscle, to accommodate itself to the movements 

 of the jaw. The branches that are given off are divided 

 into. two sets those given off below the jaw (cervical) 

 and the facial ; these are as follows : 



Below the jaw. On the face: 



Inferior palatine. Buccal (muscular). 



Tonsillar. Inferior labial. 



Submaxillar. Inferior coronary. 



Submental. Superior coronary. . 



Muscular. Lateralis nasi. 



; <<r ; Angular. . 



