92 THE BLOOD 



bacterium. The relation is very much like that which holds 

 in the complement, and this analogy is sustained by the same 

 reaction of opsonins to heat. 



QUESTIONS ON CHAPTER V 



How does excessive hemorrhage affect man? 



What is the function of the blood? 



What is the total quantity in the body of man? 



How does the quantity vary? 



How is the total quantity of an animal estimated? 



How is the blood distributed in the body? 



What are the components of the blood? 



What is the cause of the difference in color in arterial and venous blood? 



What makes the blood opaque? 



What is laky blood? 



Give the physical and chemical properties of blood. 



Discuss the chemical reaction of the blood. 



What is meant by the titration alkalinity of the blood? 



Discuss the corpuscles of the blood. 



What is hemoglobin? How is it held in the corpuscle? 



What is hemochromogen? 



What is the total area which the red corpuscles expose to the action 

 of the air? 



Discuss some of the compounds formed by hemoglobin and various 

 gases. 



Explain why illuminating gas is dangerous when inhaled. 



What is the percentage of iron in hemoglobin? 



Describe the crystals of hemoglobin and their manner of preparation. 



What are hemin crystals? How prepared? Of what importance are 

 they? 



Discuss the identification of human blood stains. 



Discuss the absorption spectra of oxyhemoglobin and of reduced hemo- 

 globin. 



What facts indicate that red corpuscles remain in the vessels but a limited 

 time? 



What is hematopoiesis? 



Where are red corpuscles formed? Describe the process. 



How are the white blood cells classified? 



What is diapedesis? 



What is the function of leukocytes? 



Discuss the blood plates. 



Describe the plasma of the blood. 



By what methods may plasma be obtained free from corpuscles? 



Explain the effect of the injection of peptones into the blood of an animal. 



Why do oxalate solutions affect coagulation? 



What are the chemical constituents of plasma? 



Give the percentage of serum albumin in the blood of man. How is 

 it separated from the globulins? 



What facts indicate that there is more than one kind of serum albumin. 



What is the percentage of serum globulin in the blood? Give its probable 

 source. How separable into different kinds of globulin? 



What is the percentage of fibrinogen in the blood? 



What substances are included under extractives? 



