NERVOUS SYSTEM. 



Q. How should the general nervous system be divided? 

 .#. Into that belonging to animal life, and that attached 

 to organic life. 



I. NERVOUS SYSTEM OP ANIMAL LIFE. 



Q. What is the centre of the nervous system of animal 

 life, and what are the parts to which it is distributed ? 



J2. The brain and its dependencies form the centre, 

 and the nervous system of animal life is distributed to the 

 senses and the organs of voluntary motion. 



Q. What is the centre of the nervous system of organic 

 life, and where are the nerves distributed? 



Jl. The ganglions are the central points, and the nerves 

 are distributed to the organs of digestion, circulation, res- 

 piration, and secretion. 



Q. Is the distinction in nervous distribution preserved 

 with unvarying precision? > 



t/?. There are a few comparatively unimportant devi- 

 ations. 



Q. Name a leading peculiarity in this nervous system 

 of animal life. 



ft.. Its symmetrical character; the nerves go off in pairs. 



Q. What renders this duplicate organization evident? 



/?. Dissection and disease exhibit the right and left 

 nervous system of animal life. In palsy one side will be 

 affected, while the integrity of the other side is unimpaired. 



