322 



FUNDUS-GLANDS OF THE STOMACH. 



placed side by side. These are the fundus-glands (Heidenhain), otherwise 

 called peptic, or cardiac. Several gland-tubes, which are wider below, 

 usually open into the short duct (Fig. 136). Each gland consists of a 

 structureless membrana propria with anastomosing branched cells in 

 relation with it. The duct is lined by a layer of cells like those lining 

 the stomach, while the secretory part of the tubes is lined throughout 

 by a layer of granular, short, small, polyhedral, or columnar nucleated 

 cells. These cells border the very narrow lumen, and were called 

 chief or principal cells by Heidenhain; they are also known as central 

 cells (Fig. 134, II, a), or adelomorplious (aSrjAoe, hidden). At various 

 places, between these cells and the membrana propria are large oval, 

 or angular, well-defined granular, densely reticulated, nucleated cells, 

 the parietal cells of Heidenhaii , or the dclomorphous cells of Eollett 



Fig. 134. 



I, Transverse section of a duct of a fundus-gland , membrana propria; b, mucus- 

 secreting goblet cells; c, adenoid interstitial substance. II, Transverse sec- 

 tion of a fundus-gland a, chief cells; li, parietal cells; r, adenoid-tissue 

 between the gland-tubes ; c, divided capillaries. 



(Fig. 134, II, K). They are most numerous in the neck of the glands, 

 and least so in the deep blind end of the tubes. These cells are 

 stained deeply by osmic acid and aniline blue, so that they are readily 

 distinguished from the other cells. They bulge out the membrana 

 propria of the gland opposite where they are placed. The parietal 

 cells in man are said to reach to the lumen of the gland-tubes (Stohr). 

 Isolated cells are sometimes found under the epithelium of the surface 

 of the stomach (Heidenhain), and occasionally in individual pyloric 

 glands (Stohr). The fundus-glands are most numerous (about 5 

 millions, according to Sappey), and are of considerable size in the 

 fundus. 



2. The Pyloric Glands occur only in the region of the pylorus, 



