536 



Mr. Walter H. Gaskell 



[June 4, 



(see Fig. 2), where a separate nerve is formed by elements whicli arise 

 laterally, known as the spinal accessory, and what is most striking is 

 this fact, that in this region the fine medullated fibres (2 in Fig.) are 

 found only in connection with these lateral motor nerves, and not with 



Fig. 2. 



Gangl. Ininn. 



bil.ltrannh 



the anterior motor, so that not only do these lateral or respiratory tracts 

 supply special muscles with motor nerves, but these motor nerves 

 have a closer relationship to the visceral nerves than other motor 

 nerves. What is true of the upper cervical region is true also of the 

 medulla oblongata. Here again, the visceral fine medullated nerves 



