THE ORGANS OF DIGESTION 



cells empty directly into the lumen of the gland by secretory capillaries; others empty by a 

 channel which divides into secretory capillaries. The parietal cells secrete the acid of the 



MOUTHS OF GASTRIC 



GLANDS, WITH GLAND 



TUBES AT BOTTOM 



DEPRESSION BETWEEN 

 TWO MAMMILLAE 



MOUTH OF 

 GASTRIC GLAND 



FIG. 1002. The mucous membrane of the stomach. A. Natural size. B. Magnified 25 diameters. In A the 

 rugse and the mammillated surfaces are shown. In B the gland mouths (foveolae gastricae), with the gland tubes 

 leading from some of them, and the ridges separating the mouths (plicae viliosae) are seen. (Cunningham.) 



FIG. 1003.- Pyloric gland. 



FIG. 1004. Peptic gastric gland. 



gastric juice. Between the glands the tunica propria consists of fibroelastic connective-tissue 

 framework with lymphoid tissue and a rich capillary plexus. In places this latter tissue, 

 especially in early life, is collected into little masses, which to a certain extent resemble the 



