THE AUTONOMIC NERVOUS SYSTEM 



467 



Sup.cerv.g 



Semilunar g. 

 Sup.mes.g. N 



Head & Neck 



Abdominal 

 Viscera 



Hypogastricn e(v>vjsc . n 



FIG. 237. Diagrammatic representation of the distribution of the sympathetic system. 



The black lines represent the medullated pre-ganglionic fibres, such as those making 

 up the white rami communicantes, while the post-ganglionic fibres are printed in red. 

 On the extreme right of the figure is indicated the general distribution of the white rami 

 arising from the several nerve-roots, while the double brackets point to the nerve- 

 roots making up the limb plexuses. H, heart ; s, stomach ; i, small intestine ; c, colon ; 

 B, bladder. 



467 



