DIGESTION. 



71 



coarser granules than the pyloric glands. These are the central, 

 or adelomorphous, cells. Between these cells and the basement 

 membrane there is another cell, oval in shape, with a distinct oval 

 granular nucleus, called the parietal, or delomorphous or oxyntic, 

 cells. 



Fig. 14. Vertical Section through the Gastric Mucous 

 Membrane. ( LANDOIS. ) 



ff, g, The crypts of the surface, p, The mouths of the peptic tubules (fundus 

 glands) with parietal cells (x) and chief cells (y). a, v, c, c, Artery, vein, and 

 capillaries of the mucous membrane, i, Capillary network for the passage of 

 the mouth of the gland-duct, d, d, The lymphatic vessels of the mucous mem- 

 brane, passing over, at e, into a large trunk (semidiagrammatic representation). 



The blood-vessels of the stomach are derived from the three 

 divisions of the cceliac axis. The veins are the tributaries of the 

 portal vein, and contain numerous valves. The nerves are the vagus 



