GLANDS OF THE STOMACH. 



2 75 



Surf, of 

 mucous 

 membrane. 



generally from 7 -J^th to -g-i^th of an inch ; but near the 

 pylorus is as much as y^-th of an inch. They are separated 

 by slightly elevated ridges, which sometimes, especially 

 in certain morbid states of the stomach, bear minute, nar- 

 row, vascular processes, which look like villi, and have 

 given rise to the erroneous sup- jy^ 53^ 



position that the stomach has ab- 

 sorbing villi, like those of the small 

 intestines. In the bottom of the 

 cells minute openings are visible 

 (fig. 68), which are the orifices of 

 perpendicularly - arranged tubular 

 glands (fig. 69), imbedded side by 



side in sets or bundles, in the substance of the mucous 

 membrane, and 

 composing nearly 

 thewhole structure. 



The glands which 

 are found in the 

 human stomach 

 may be divided into 

 two classes, the tu- 

 bular and lenticular. 



Tubidar glands. 

 The tubular glands 

 may be described 

 as a collection of 

 cylinders with blind 

 extremities, about 

 2 Lth of an inch in 



Fig. 68. Small portion of the surface of the mucous membrane of 

 the stomach (from Ecker) ^. The specimen shows the shallow de- 

 pressions, in each of which the smaller dark spots indicate the orifices of 

 a variable number of the gastric tubular glands. 



t Fig. 69. Portion of human stomach (magnified 30 diameters) cut 

 vertically, both in a direction parallel to its long axis, and across it 

 (altered from Brinton). 



