APPENDIX 545 



II. Nutrition 



1. (Optional) Study of the frog as an introduction to human 



nutrition. 

 (a) Identification of systems of organs. 

 (6) Appearance and location of organs. 



2. Study of metabolism in man. 



(a) Digestion. 



1. Purpose. 



2. Foods ; uses of different nutrients ; include vitamins 

 and deficiency diseases ; omit planning of diets and food 

 tests. 



3. Alimentary canal and digestive glands. 



4. Enzymes, intermediate products, end products. 



5. Experiments showing digestion. 



6. Peristalsis. 



7. Hygiene of digestion. 



(b) Absorption. 



1. Purpose. 



2. Adaptations. 



(c) Circulation. 

 1 . Purpose. 



' 2. Composition of blood ; function of each part ; clotting. 



3. Organs of circulatory system. 



4. Course of blood; changes in composition in various 

 organs. 



5. Lymph and lymphatic system. 



6. Hygiene of circulation. 



7. Discoveries of Harvey, Malpighi, and Leeuwenhoek on 

 the blood and circulation. 



(d) Assimilation. 



(e) Respiration. 



1. Brief study of air passages. 



2. Emphasize cell respiration. 

 (J) Secretion. 



1. Duct glands. 



