THE STRUCTURE OF THE BRAIN STEM 



385 



Corpus CdJIoSum 



Rtd Nucleus 



n Ittr 

 Median Fillef 



Pt dune I e 

 Ctrebellum , - 



5[>ino-CerebelUr 

 Tracts 



/Co- ordination 



\ Muscular Tone I 



Nucleus 



Crossed Sensory Fibres 

 /PAin. Hea,t& Cold) 

 vlouch & Pressure/ 



Dorsal Column (direcf) 

 /stnst of posifion \ 

 \ ' " mo^cmenf/ 



G&ntflion __ 



N6RV6 

 .TRflGTS. 



PIG. 107 Diagram of ascending tracts between the spinal cord and brain (GORDON 

 HOLMES), with the probable path^of^sensory impulses. 



25 



