DIGESTIVE SYSTEM. 



173 



woodpeckers it is barbed and clearly a prehensile 

 organ. In man, while the organ assists in taking 



Fig. 125. Papillar surfaces of the tongue, with the fauces and 

 tonsils: i, i, circumvallate papilla?, in front of 2, the foramen cecum; 

 3, fungiform papillae; 4, filiform and conical papilla;; 5, transverse 

 and oblique rugae; 6, mucous glands at the base of the tongue and in 

 the fauces; 7, tonsils; 8, part of the epiglottis; 9, median glosso-epi- 

 glottidean fold (frasnum epiglottidis) (from Sappey). 



food, its more important function is gustatory, the 

 taste organs being located upon its surface. For 



