THE BLOOD 



121 



from the foods, and conveys the nutriment to all parts of the 

 body. 



2. It conveys the materials from which the secretions are 

 formed to the various glands which prepare them. 



3. It carries the oxygen gas to all the tissues where the process 

 of oxidation goes on, thus being essential for the maintenance of 

 the high temperature of the body. 



4. It collects up waste materials, and conveys them to the 

 excreting organs for separation and removal. 



5. It serves to distribute heat throughout the body. 

 6 It moistens the various tissues. 



SUMMARY. 



Composition 

 of the 

 BLOOD 



Liquor 

 Sanguinis 



Contains 



Corpuscles 



The liquid of the blood. 

 ( Water. 



Dissolved albumen. 

 Mineral salts. 

 The elements of fibrin. 

 Discs, round, with concave 



sides. 



Diameter, ^L_ inch. 

 Thickness, j^ooo i nc h- 

 Yellowish when viewed 



singly. 

 Have a tendency to adhere 



and form files when the 



blood is drawn. 



CLOTTED BLOOD 



Serum . 



Fibrin . 



Corpuscles 



BLOOD 



f Arterial 



Venous 



Temperature 

 Quantity . . 



Red 



g lobin Th( : 



v rier. 



(Shape constantly varying. 

 Diameter, ^o inch. 

 Transparent, jelly-like. 

 Resemble the amceba. 

 One to every 500 red. 

 Water. 



Dissolved mineral salts. 

 Dissolved albumen. 

 Formed during , Clot _ floats in the 



coagulation. \ 

 Red and white. ' 

 Bright red. 

 Rich in oxygen. 

 Usually contained in arteries. 

 Dark purple. 

 Usually found in veins. 

 r . i Less oxygen than arterial blood. 



13 I More carbonic acid gas. 

 Converted into arterial blood by absorption 



of oxygen. 

 99 F. 

 One-tenth the weight of the body. 



