VII 



DIGESTION 



as can be seen from Figure 35. We see that the large 

 intestine extends up to the liver at the right side, across 

 the abdomen in front of and below the stomach, and 

 down at the left side. These three parts are known as 

 the ascending, the transverse, and the descending colon. 

 The last portion of the large intestine is the rectum. 



The mucous membrane of the intestines has millions 

 of tubelike glands all over it ; they are important, as they 

 produce a fluid, the intestinal juice, which helps to digest 

 the starchy foods. The intestinal juice also helps to pre- 

 pare the acid 

 foods as they 

 come from the 

 stomach for 

 the digestion in 

 the intestines. 



On the left 



Pa/? erect fie dt/ct 



FIG. 50. The pancreas, front view (ZuppkeJ. 



side of the body, just below the stomach, is the most 

 important digestive gland of the body. It is the/#;/- 

 creas, or abdominal sweetbread. The pancreas is pinkish 

 yellow in color, about six inches long and two inches wide. 



A duct which runs 

 the entire length 

 of the pancreas 

 from left to right 

 empties into the 

 small intestine a 

 little below the py- 



FlG. 51. The pancreas cut open to show the 

 ducts (Zuppke). 



lorus. The chief business of the pancreas is to manu- 

 facture a liquid called pancreatic juice, which is poured 



