94 A MANUAL OF ANATOMY. 



interest because it anastomoses with its fellow from the 

 other side across the cricothyroid membrane, and must be 

 divided in laryngotomy, or laryngotracheotomy. 



(2) The Lingual Artery : The second branch from the 

 front of the external carotid. Its course is forward and 

 upward around the great cornu of the hyoid bone, then 

 beneath the hyoglossus muscle, then under the tongue (as 

 the ranine artery) to its tip. 



The artery is reached for purposes of ligation through 

 the lingual triangle. See page 85. 



Branches of the Lingual : (a) The hyoid ; this runs for- 

 ward over the hyoglossus muscle just above the hyoid 

 bone. (b) The dorsal artery of the tongue is a branch 

 from the lingual under the hyoglossus muscle ; it passes 

 upward to the back of the tongue. It supplies not only 

 the tongue but small branches to the tonsil and fauces. 

 (c) The sublingual is given off at the anterior border of the 

 hyoglossus muscle, passes forward under the mylohyoid 

 muscle to the sublingual gland, floor of the mouth, and in 

 its course supplies the adjacent muscles. The artery of the 

 fraenum is a branch from the sublingual. (d) The ranine, 

 or the last portion of the lingual along the under surface 

 of the anterior portion of the tongue, to its tip. Supplies 

 the tongue and the surrounding muscles. 



(3) The Facial Artery (in the neck). Arises from the 

 front of the external carotid as the third branch, or with 

 the lingual by a branch common to both. It takes a 

 tortuous course upward and forward, under the posterior 

 belly of the diagastric and the stylohyoid muscles, through 

 the upper and back part of the submaxillary gland, which it 

 deeply grooves, then turns upward on to the face, over the 

 lower jaw, just in front of the masseter muscle. For its 

 course in the face, see page 64. 



