322 



THE DIGESTIVE SYSTEM 



more rarely in the neighboring portions of the buccal mucous membrane 

 are small sebaceous glands which open directly upon the free surface. 

 The oral glands will be further described below under salivary glands. 



FIG. 302. AXIAL SECTION OF A HUMAN MOLAR TOOTH. 

 C, cementum; D, dentin; P, pulp cavity; S, enamel. X 8. (After Sobotta.) 



