XXI] (ESOPHAGUS AND STOMACH 167 



The connective tissue immediately internal to the 

 muscularis mucosae; it surrounds the bases of the 

 glands, and sends up processes between them. It runs 

 between the glands, generally with a few muscle-cells 

 from the muscularis mucosse, and is seen as thin bands 

 between the bodies of the glands ; the bands spread out 

 near the surface. Leucocytes are present, but not in 

 great numbers. 



2. Section of the fundus region of the gastric 

 mucous membrane, through the bodies of the glands 

 parallel to the surface. Observe 



The central cells forming a tube with very small 

 lumen. 



The comparatively rare ovoid cells on the outer 

 side of the central cells. 



If an oblique section is made through the mucous 

 membrane, the mouths of the glands will be seen as 

 cross sections of tubes with distinct lumina ; the necks 

 will appear as clumps of cells, most of them ovoid, 

 the lumina being indistinct. 



3. Cut with scissors a thin strip of the fundus 

 mucous membrane of a recently killed guinea-pig or 

 rabbit. Mount it without fluid and gently press the 

 cover-slip. Note in the deeper parts of the glands the 

 central mass of granules (granules of the central cells), 

 and the projecting ovoid cells without distinct granules. 

 Add 1 to 2 p.c. salt solution, and press the cover-slip a 

 little more firmly, the bases of some of the glands will 

 probably be obtained isolated, and the disposition of the 

 granules be more distinct. In dilute salt solution or 

 on addition of dilute acid, the granules of the central 



