102 EQUINE ANATOMY. 



the digastricus and the lingual nerve, passes between 

 the stjlo-glossus and the sub lingual gland, to end in 

 front of the frsenum of the tono-ue. 



3. Sublingual. — Division : Two faces, two borders, 

 and two extremities. External face covered by the 

 mylo-hyoideus. Internal face rests on the duct of 

 Wharton, the stylo and genio-glossus muscles. Su- 

 perior border forms the lingual crest. Inferior border 

 lays between the mylo-hyoideus and the genio-glossus 

 muscles. Posterior extremity receives the lingual 

 nerve. Anterior extremity runs to the angle of the 

 inferior maxillary bone. 



Duct:8 of Rivinus, fifteen or twenty open on the 



11" , ■ II '_ - - Mil - II — I — fr — -' -*- 



lingual crest. Blood vessels, sublingual artery. 

 ^Nerves, lingual and carotid plexus. 



4. Molar. — Superior, along the superior border; 

 and inferior along the inferior border of the buccinator. 



5. Labial, lingual, staphtline or palatine, in the 

 lips, tongue and velum palati. 



AXGEIOLOGY. 



Arteries. — The three terminal branches of the prim- 

 itive, or common carotid : 1 — occipital : 2 — internal ; 

 ■3 — external carotid. ■ 



a. Occipital artery runs under the transverse pro- 

 'Cess of the atlas, behind the guttural pouch, between 



