122 CIRCULAT/OX 



What is a sphygmogram? 

 What is the dicrotic wave? Its cause? 



How are rapid changes in the velocity of the blood measured? 

 Give the rate of flow of the blood and the causes for its variations. 

 How long does the blood remain in the capillaries? 

 How does the pulmonary differ from the systemic circulation? 

 What governs the distribution of the blood in the body? 

 Discuss the distinction between vasoconstrictor and vasodilator nerves. 

 Describe the vasomotor centre. 



What is the evidence for the existence of subsidiary centres controlling 

 bloodvessels? 



What are Traube-Hering waves? 



What are pressor and depressor fibers? 



Indicate a physiological compensatory blood-pressure mechanism. 



Is there a chemical regulation of the caliber of bloodvessels? 



Describe the lymph. 



Describe fully the circulation of the lymph. 



