96 JTCRVOITS SYSTEM. 



Q. This red blood performs two functions on the brain 

 what are they? 



/?. It contributes nutrition to the brain, and excitation 

 as a stimulant 



Q. What is necessary to the commencement of animal 

 life? 



Ji. That the organs be influenced by red blood. 



Q. What cooperates with this red blood to excite ani- 

 mal life at birth ? 



#. External impressions, and those made on the mu- 

 cous surfaces. 



Q. What is the conspicuous feature in asphyxia? 



.#. The apparent absence of animal life. 



Q. How does asphyxia differ from foetal life? 



*fl. In the foetus, organic life goes on. The blood dif- 

 fers in the foetus from the black blood of asphyxia one, 

 the foetal, is a natural state of the, black blood, the other is 

 a morbid state. 



Q. What functions predominate in irtfoncy? 



t/?. The animal; hence a constant susceptibility to exter- 

 nal impressions; the constant action of the voluntary mus- 

 cles, in the desire to touch and grasp what is seen ; hence 

 the predominance of the diseases of the animal functions, 

 the frequency of cerebral disease and convulsions. 



Q. Why do infants sleep so frequently and so much? 



#. The activity of the animal functions fatigues the 

 brain, demands repose, and produces sleep. 



Q. Are the same systems predominant at different pe- 

 riods of life? 



A. They are not. The brain and nerves predominate 

 in infancy; the uterus in the girl; the lungs in robust man- 

 hood; the gastric viscera in advanced life. 



