STOMACH. PRACTICAL DEMONSTRATION. 



87 



Harden small pieces in strong alcohol, and cut sections at right 

 angles to the surface and from different regions. 



Stain with haema. and eosin, and mount in dammar. 



VERTICAL SECTION FROM GREATER CURVATURE OF 

 DOG'S STOMACH. 



(Fig. 65.) 

 OBSERVE: 



(L.) 



1. The division into: (a) Surface epithelium (free ends of gland- 

 tubes), (b) Mucosa. (c) Muscularis mucosse. (d) Submucosa. 



FIG. 65. VERTICAL SECTION OF WALL OF CENTRAL PORTION OF DOG'S STOMACH. 



A. Internal surface, showing open mouths of the gastric tubules, lined with clear columnar 

 cells. 



B. Deepest portion of submucosa. 



C. Muscularis mucosae. 



D. Submucosa. 



E. Adipose tissue in last. 



F. Bundles of muscular tissue (internal circular), x 60. 



(e) Muscular layers. (Only a portion of the inner circular layer 

 is shown. It has been divided transversely.) 



