268 



THE DIGESTIVE ORGANS. 



may be recognized as such in suitably stained preparations, cells 

 with zymogen granules, similar to the chief cells of the body of the 

 fundus glands (see these), are also found, as also the parietal cells, 

 as found in the latter glands. The cardiac glands may be regarded 

 as decadent structures. 



2. The fundus glands (peptic glands) consist of a crypt or 

 foveola, into which empty three to five, or even more, unbranched 

 and branched tubules, which often show irregular terminal enlarge- 



Epitbelium of 

 esophagus. 



Cardiac gland. 



Junction of 

 esophagus 

 and stomach. 



Epithelium of 

 stomach. 



r^ Gastric crypt. 



if V, 

 if , " 1 1\ ' 



k V '..".'. !*v 

 * 



Fig. 210. From a section through the junction of the human esophagus and cardia ; 



X5- 



ments. The tubules vary in length, measuring from 0.4 to 2.2 

 mm. The upper end of a fundus tubule is slightly narrower and 

 presents structural peculiarities, and is known as the neck of the 

 gland. The main portion of the gland is called its body, and the 

 region at its distal blind end the fundus. 



The fundus glands, as their name suggests, are found in the fundus 

 or cardiac end of the stomach, and are lined by two kinds of cells : 

 parietal (border cells, acid, oxyntic, or delomorphous cells R. 

 Heidenhain, 69; Rollet, 70) and chief, central, peptic, or adelomor- 



