784 



A MANUAL OF ANATOMY 



the length of the gland-tube. It is lined by a prolongation of the 

 central or chief cells of the neck, which almost completely fill it, 

 and which have now become somewhat columnar and transparent. 

 Between these cells and the basement membrane there are a few 



parietal or oxyntic cells 

 here and there. The 

 parietal cells of the neck 

 and body impart the 

 characteristic beaded 

 appearance to the gland- 

 tube. The fundus is the 

 blind deep end of the 

 gland-tube. 



The pyloric glands are 

 situated in the pyloric 

 third. The duct of each 

 forms one half of the 

 entire length of the 

 gland. It is lined with a 

 single layer of columnar 

 epithelium. The deep 

 end of the duct is con- 

 nected with two or three 

 gland-tubes, which re- 

 present one half of the 

 entire gland. The neck 

 of each tube is com- 

 paratively short, and 

 the body is branched at 

 its deep extremity. The 

 neck and body are lined with cubical granular cells, representing the 

 central or chief cells of the cardiac glands, and they are not so 

 crowded as in the cardiac glands, so that there is a very distinct 

 lumen. There is an entire absence of parietal or oxyntic cells, 

 and the body of each gland- tube has an undulating, convoluted 

 outline. The pyloric glands are serially continuous with Brunner's 

 glands of the small intestine. 





Mucosa with Pyloric Glands 



Muscularis Mucosse 



Submucosa 



Muscular Coat 



Z Peritoneal Coat 



Fig. 



336. — The Pyloric Glands of 

 Stomach (highly magnified). 



Summary of the Cardiac and Pyloric Glands. 



Cardiac Glands. 



Ducts short. 



Gland-tubes long. 



Gland-tubes almost filled with 

 coarsely granular polyhedral 

 cells, called central or chief cells. 



I>umen very small. 



Gland - tubes have parietal or 

 oxyntic cells between the central 

 cells and the basement mem- 

 brane. 



Pyloric Glands. 



Ducts long. 



Gland-tubes short. 



Gland-tubes lined with cubical 



granular cells. 

 Lumen distinct. 



Gland-tubes destitute of parietal 

 or oxyntic cells. 



