712 PHYSIOLOGY. 



Langley calls the sympathetic system an autonomic system, 

 because it is a sort of independent system from the central nervous 

 system. 



Midbraiii autonomic. 



Bulbar autouomic. 



Sympathetic. 

 ITh. to 11 or 111 L. of man. 



Sacral autonomic. 



Fig. 287. Diagram of the Origin, in Man, of the Efferent Autonomic 

 Fibers from the Central Nervous System. (LANGLEY.) 



The sympathetic system proper arises from the dorso-lumbar 

 cord. 



The cranial and sacral autonomic systems have more in common 

 with one another than either has with the sympathetic, and on this 

 account they may be grouped together as the parasympathetic sys- 

 tem. The parasympathetic system includes the midbrain autonomic 



