1568 



HUMAN ANATOMY. 



Just behind the incisors, at or before the incisor canal, there is a small raised 

 pad or fold of mucous membrane, on either side of which the orifice of the incisor 

 canal \s often found. When pervious, it is very minute, admitting merely a bristle. 

 Behind this the palate presents a median raphe of paler color than the rest, which may 



FIG. 1325. 



Orifices of palatine glands 



Incisor pad with orifice of incisor 

 canal 



Raphe 



Mucous membrane removed to 

 show layer of glands 



Soft palate 



Uvula 



Superior dental arch and palate ; palatal rugae occupy anterior part. Soft palate partially cut away. 



run to the root of the uvula or may stop short of it, being often deflected to the left. 

 A little behind the pad this line may be interrupted by a pale oval elevation or more 

 often a depression. The membrane of the roof of the mouth is nowhere bright red ; 

 that of the hard palate, however, is paler than the rest. There are no glands in the 

 oval white space, but there is a continuous layer on either side of it. The orifices of 

 the glands are easily seen with a lens, sometimes with the naked eye. A little in 



FIG. 1326. 



oft palate 



Supratonsillar fossa 

 Uvula 



Posterior pillar of fauces 



Epiglottis 



Muscular fibres of tongue 



Dorsal surface of 



Anterior pillar of fauces 



Tonsil 



Sagittal section through p.ilat.-, uvvila. and tongue, showing right lateral wall of fauces; tongue has been pulled 



downward by honk 



fr.int >f the origin of the s, ,ft palate the mucous membrane becomes deeper colored. 

 Thc-sc differences in color an- more striking in children. 



The Soft Palate. This structure consists of a fold of mucous membrane, con- 

 tinuous with the hard palate, enveloping several layers of interlacing muscular fibres, 

 at lent i cm. in thickness at its origin. Its lower border is the edge of the fold. 



