1242 



A MANUAL OF ANATOMY 



Papillae.— -These are of three kinds, namely, conical, fungiform, 

 and circumvallate, and they are confined to the anterior two- 

 thirds of the organ. The conical papillae are the most numerous, 

 and are arranged in more or less parallel, closely-set rows, directed 

 forwards and outwards from the median line, except towards the 

 tip, where the rows tend to become transverse. On the sides of 

 the tongue they are arranged in vertical parallel rows. In some 



Uvula 



Posterioi Pillar of 

 Fauces 



Epiglottis 

 Median Glosso- 

 epiglottidean Fold 



Foramen Csecum A^ 



Lymphoid Tissue v 



Anterioi Pillar of 

 Fauces 



Tonsil 



Median Raph# 



Fungiform Papilla: 



Fig. 505. — The Dorsum of the Tongue, and the Fauces. 



conical papillae the epithelium which caps the secondary papillae 

 forms thread-like processes. Such are known as filiform papillae. 



The fungiform papillae are scattered amongst the conical, and are 

 most numerous at the sides and tip, being rather sparse over the 

 dorsum. Each is round and enlarged at the surface, but tapers at 

 its deep end, and it bears secondary papillae, but there is no fili- 

 form arrangement of the epithelial caps. 



The circumvallate papillae are conspicuous, and vary in number 

 from seven to thirteen. They are arranged in two diverging rows 



