CHAP. II.] 



THE STRUCTURE OF THE STOMACH. 



61 



Cylindrical 

 epithelium 90- 

 vers the alve- 

 oli and inter- 

 vening ridges. 



being more 

 thelial cells 

 endothelium 



The whole mucous membrane of the stomach, with 



its depressed alveoli and the intervening ridges, is 



covered by cylindrical epithelium cells, similar to those 



of the intestinal tract. These epithelium cells are 



mucus-forming cells, the outer, free, portion of the cell 



or less completely transformed into mucin. The epi- 



lie upon a basement membrane composed of apposed 



-like cells. 



SCHEMATIC REPRESENTATION OF A GLAND OF THE FUNDUS OF THE STOMACH TOGETHER 

 WITH THE LYMPHATICS AND BLOOD-VESSELS OF THE MUCOUS MEMBRANE. (LiANDOIS.) 



g neck of the gland lined with cylindrical epithelium. 



x and y secondary tubes lined with ovoid border cells and centric or chief cells. 

 a an artery of the mucous membrane breaking up into smaller branches and being 

 in capillaries from the which arise the radicles of the vein v. 



e deeper and a more superficial lymphatics of the mucous membrane. 



