VI 



SYMPATHETIC SYSTEM 



371 



i G vert. 



G so/ 



-V- 



FIG. 107. Diagram of thf IIPI \-o\is elements wliii-h make up the sympathetic or splanchnic sy^teni. 

 ( Ba-liuiii.) ];. 1; . >pinal con I : It. 11'., ilursal rool : H".. ventral root ; *p.\'., spinal nerve; r.o., 

 white raiuus conimunicans : /.:.. ,,'rey ranius eommunicans ; f,'..sV., lateral chain ; G.vert., ganglia 

 t' lateral chain (vertebral ganglia) ; '/..-"/., si il.-n- .^anxlioii : p. G., peripheral ganglia (t.-iminal) ; 

 H.nt'-a.inf., inferior mesfiitfi ic u m.^lion ; D. intestun' : Ji lilailder. The l^it Md.-nt t he figure 

 shows the peripheral cutaneous system (.4f., arterial walK ; Ar., erectoi mu^rl<-s of hairs; 

 <//.. gland cells); the ri.u'lit .irives tin- peripheral splanchnic- system (.-If., arterial walls; dr., 

 gland cells; P, Pacinian corpuscles). The afferent paths and cells are black ; the efferent pre- 

 ganglionic(intra-central). bin*- ; tin- M'-i'Mit post-ganglionic paths and cells, red. 



2 B 1 



