THE STOMACH. 



143 



lower termination of the pharynx and which, passing on 



through the neck and chest, ends below the diaphragm in 



the stomach. In the neck it lies close behind the windpipe. 



The Stomach (Fig. 47) is a curved conical bag placed 



FIG. 47. 



FJG.48. 



Fio. 47. The stomach, d. lower end of the gullet ; o, position of the cardiac 

 aperture : b, the fuiidus ; c, the pylorus ; e, the first part of the small in tee 

 tine ; along a, 6, c, the great curvature ; between the pylorus and d, the lesser 

 curvature. 



FIG. 48. A thin section through the gastric mucous membrane, perpendicu- 

 lar to its surface, magnified about 25 diameters, a, a simple peptic gland; 6, a 

 compound peptic gland; c, a mucous gland. 



transversely in the upper part of the abdominal cavity.* 

 Its larger end is turned to the left and lies close beneath 

 the diaphragm, and opening into its upper border, through 

 the cardiac orifice at a, is the gullet, d. The narrower right 

 end is continuous at c with the small intestine; the com- 

 munication between the two is the pyloric orifice. The 



Describe the gullet. Where does it lie in the neck? 



What is the stomach? Which end of it is larger? Where does 

 this end lie? What opens into it? What is the opening called? 

 What is continuous with the small end of the stomach? What is the 

 name of the aperture between the stomach and the small intestine? 



* The general anatomical arrangement of the stomach, and its connections 

 with the gullet and intestine, may be readily shown on the body of a puppy, kit- 

 ten, or rat, which has been killed by placing it for five minutes in a small box 

 Containing also a sponge soaked with chloroform. 



