624 



NERVOUS SYSTEM 



Fis. 1. 



Ventral 



IX. 



-Diagrammatic Representation of the peripheral Nervous System of a Bird 

 view. Left sule showing the Somatic, right side showing the Visceral Nerves 



Lu,Srs"tn ';?^'",'A ^- ^'t;'""'''' ""• ^- ""• ^- "' distribution to the Carotid, the Heart. 

 Lungs, Stomach and Gut ; Xll.l, Lingual branch and Xn.2, Syringeal branch of N. hypo- 

 glossus ; Sy. Sympathetic ganglion of the first spinal nerve. 



Fig. 2.-Diagrammatic view of a transverse section through the spinal cord oa. the level of the 



exit ol a typical spinal nerve. 

 ^.//. and I'M Anterior or ventral and Posterior or dorsal Horns with ganglia, of the -rey sub- 



TZ Vo"tV':f "'^ °' T""'' '^ "^'^ "^^ ^"'^^^^ '^^"^^ = ^>-«- *'-■ «P'-1 Ganglion of the 

 dorsal root of the spinal nerve; Sy.G. the Sympathetic Ganglion; RA., U.xc, iJ.fis. 

 Dorsal, Ventral and Visceral (or sympathetic) branches of the spinal ner^•e. 



