THE LACTEALS. 



set (d, Fig. 34) carry blood; the other, b, a watery liquid 

 named lymph. The villi act like little roots or .suckers, 

 and the chyle which they absorb, 

 goes, some of it into the blood 

 at once, and some into the lymph- 

 vessels. 



14. The Lacteals. Lymph-ves- 

 sels, like blood-vessels, are found 

 in nearly every part of the body. 

 Another name by which they are 

 known is the absorbents. Most 

 lymph-vessels contain only a thin 

 colorless liquid, the lymph. But 

 when chyle is being absorbed, 

 the lymph-vessels of the small 

 intestine take up so much of it 

 that their contents become white 

 and milky-looking. 



have been named the lacteals, 

 from a Latin word (lac] meaning milk. The lacteals 

 finally pour the chyle which they have taken up, into a 

 tube, named the thoracic duct, which runs up to the bot- 

 tom of the neck and there opens into a large blood- 

 vessel. 



15. The Large Intestine (CC, AC, TC, DC, SF, R, Fig. 

 32) is two or three times as wide as the small, but only 

 about five feet long. In it the absorption of the nourish- 

 ing part of the food is completed, and towards its lower 



14. Where are lymph-vessels found ? Another name for them ? 

 What do most contain? What do those of the intestine become filled 

 with during digestion ? What name has been given them ? What do 

 they do with the chyle ? Where does the thoracic duct pour its con- 

 tents into the blood ? 



15. Size of the large intestine ? Uses ? 



FIG. 34. Two yilli from the 

 inside of the small intestine, mag- 

 T4^r/-^ tVi^r nified eighty times; </, d, blood- 

 racucc uicy vessels; b and c, lymphatic vessels 

 or lacteals. 



