302 



ANATOMY FOR NURSES 



[Chap. XV 



SUMMARY 



Digestion — Is the process of changing food into products capable of 



absorption. 

 Food — Substances that contain elements found in the body, or furnish 



material for production and repair of tissue, or yield energy. 



Classifica- 

 tion 



Water 



. f Water. 



I Mineral matter or salts. 

 ( Proteins. 

 Organic \ Carbohydrates. 

 [ Fats. 



H2O. About 66 per cent of body weight. 

 Found in all tissues. 

 ' Supplies fluid. 

 Acts as solvent. 

 Aids in elimination of waste. 



Mineral 

 Matter 



' of sodium and potassium. 



magnesmm. 



Proteins 



Chloride 

 Phosphate 

 Sulphate 

 Carbonate , 



Phosphate 1 , , . , 



^ , ^ ? of calcium and 

 Carbonate J 



' 1. To maintain alkalinity of body fluids. 

 2. To furnish material for acidity or alkaUnity 

 of digestive fluids. 

 Function { 3. To maintain osmotic pressure. 



4. To enter into bones, teeth, and cartilage. 



5. To influence elasticity and irritability of 

 muscles and nerves. 



Consist of C, H, N, ; S, P, and other elements may be 



present. 

 Differ from carbohydrates and fats in having nitrogen. 

 Albumins. 

 Caseinogen. 

 Examples I Gluten. 

 Legumin. 

 , Extractives. 



