ORGANS OF DIGESTION 



A young lean cat which has had no food for twenty-four 

 hours is the best subject for the demonstration of the digestive 

 system. Directions for preparing the specimen are given in 

 the chapter on technique. 



Fig. 6o. — Diagram of a Gland. 



a, artery; v', vein; c, part of gland covered with capillaries; c, an acinus like c , 



cut open; i, duct. 



The digestive system (Figs. 6i and 62) consists of the ali- 

 mentary canal and the accessory glands of digestion. The 

 canal is made up of the mouth, pharynx, esophagus, stomach, 

 small intestine, and large intestine. Its entire length is about 

 five times that of the cat from the tip of the nose to the root 

 of the tail. The accessory glands consist of five pairs of sali- 

 vary glands, the liver, and the pancreas. A gland is a tiny 



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