THE SYMPATHETIC SYSTEM 



This fibre is called the pre-ganglionic or precellular fibre. 

 I myself call it central ganglionic fibre. The name we give 

 to the gray fibre which arises from the ganglionic cell is 

 post ganglionic or post cellular fibre; for my part I prefer 

 to call it vegetative ganglionic fibre, and, I think that we 

 should differentiate the fibres of this last group into 

 those that reach the vegetative tissues of the periphery 

 and those that are distributed to the vegetative tissues 



Fio. 20. Vegetative motor functional arc. 



of the splanchnic cavities. I have grouped under the 

 name of vegetative ganglionic fibres on one side the fibres 

 going to the periphery or ganglion-somatic fibers and on 

 the other the fibres destined to the splanchnic area or 

 ganglion-splanchnic fibres. 



This is the most simple motor vegetative functional 



arc; this is the type that is followed always by the ganglion 



somatic distribution, but there are other modifications 



which are united in various combinations with the central 



ganglionic fibres. 



