Journal of Comparative Neurology and Psychology. Vol. XV. 



Somatic sensory division 

 Splanchnic sensory division 

 Splanchnic motor division 

 Somatic motor division 



X X X X Splanchnic sensory decussation, first 

 order 

 Splanchnic sensory decussations, 



second and third orders 

 Somatic sensory decussation, second 

 order; posterior commissure 

 IBB Decuss. tr. tecto-lobaris 

 n n n Som. sens, dec, internal arcuate 

 fibers; optic tract 

 Decuss. tr. lobo-bulbaris; ventral 



