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 di- 
gestive system. Directions for preparing the specimen are 
given in the chapter on technique. 
The digestive system (Figs. 55 and 56) consists of the 
alimentary canal and the accessory glands of digestion, 
= oe 
epee 
l<Tofofofo} 
Fic. 54. 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 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 salivary glands, the liver, and the pancreas. 
105 
