DIGESTIVE SYSTEM 



69 



Esophagus 



The esophagus is short and of relatively large caliber. According 

 to some authorities objects, from 1% to 2 inches in diameter, can 

 pass through the esophagus readily. The mucous membrane of the 

 anterior portion is richly supplied with mucous glands. 



Stomach 



The stomach of swine is simple biit relatively large. There is a 

 cardiac and pyloric portion but the division is not distinctly out- 



Sniall intestine 



.Stomach covered 

 with omentum 



Pig. 16. Stomach and intestine of swine after complete opening of the 



abdomen. (Ostertag). 



