HOW FOOD IS DIGESTED 25 



tion yet complete. When the partly digested ma- 

 terial or chyme leaves the stomach it passes into 

 the duodenum, one of the three parts of the small 

 intestine, and is subjected to further action of other 

 digestive juices. Here the bile, the pancreatic and 

 intestinal juices are admitted to complete the work. 

 The bile, dark green or brownish in color, is se- 

 creted by the liver and acts in conjunction with the 



BLOOD PLASMA 



This shows blood plasma passing out of the capillaries to feed the cells. 

 It is there taken up by the lymph vessel. 



pancreatic juice. The pancreatic juice, alkaline and 

 watery, is secreted by the pancreas, or "sweet 

 bread." The bile acts as a bowel regulator when 

 the liver is active and healthy. The pancreatic juice 

 has a treble function : it is able to change starch into 

 sugar, protein into peptones, and the oils into fatty 

 acids. The intestinal juices perform similar work. 

 The Two Intestines are not only important for 

 storage purposes, but in them, particularly the 



