The Digestive System. 155 



If the food taken is a liquid and ready to build tissue, as 

 a thin syrup, it will not need to go through these changes. 



The Organs of Digestion. The organs of digestion are 

 the digestive tube, with the masticating organs, and the 

 glands in and along the walls of the tube. 



The parts of the digestive tube are the mouth, the 

 pharynx, the gullet (or esophagus), the stomach, the small 

 intestine, and the large intestine. 



The Mouth and Gullet. At the back of the mouth may 

 be seen the soft palate with the cylindrical uvula hanging 

 from its center. Beyond this is the cavity of the pharynx, 

 which narrows below into the gullet, a red-walled, muscular 

 tube, extending along the back side of the windpipe, and 

 close to the spinal column. It extends the length of the 

 chest, and then passes through the diaphragm and widens 

 into the stomach, at the upper left end of the latter. 



The Stomach. The stomach is somewhat pear-shaped, 

 with the larger end to the left. At the right end it tapers 

 into the small intestine, the first foot or so of which is 

 called the duqdejnim. (See Figs. 53, 72, and 74.) 



The Liver and Pancreas. ... Just below the diaphragm is 

 the dark-colored liver, overlapping a large portion of the 

 stomach. Between two of the lobes of the liver is the 

 bile sac, whose duct enters the duodenum a short distance 

 from the stomach. The pancreas is a pinkish organ of 

 irregular shape lying along the stomach and duodenum. 

 Its duct enters the duodenum at the same point as the bile 

 duct. 



The Intestine. The first part of the intestine is the 

 small intestine. At the lower right part of the abdomen 



