QUESTIONS 289 



limited by the degree of diffusibility of the substances 

 to be absorbed (Brubake'r's Physiology, p. 225). 



QUESTIONS 



1. Describe absorption. 



2. By what two sources does lymph reach the blood current? 



3. What is the function of the cells in the villi of the mucous 

 membrane of the small intestines? 



4. Where are the lymph spaces found? 



5. What do you understand by the term lacteals? 



6. What is chyle? 



7. How does the nutritive material absorbed by the cells of 

 the villi reach the arterial capillaries? Where is this material 

 conveyed? 



8. Where is the lymph absorbed by the lacteals from the lymph 

 spaces conveyed? 



9. Name the vessels found in a villi. 



19 



