A STUDY OF THE NERVOUS SYSTEM 277 



ferent parts of the same hemisphere ; some carry messages 

 from one hemisphere to the other ; others bring the fore-, 

 mid-, and hindbrains into connection with one another and 

 with the spinal cord ; while a series composed of still 



FIG. 128. The Base of the Brain. 



A frontal lobe of right cerebral hemisphere. 

 B = temporal lobe of right cerebral hemisphere. 

 Cb = cerebellum. 



CC= connection between two hemispheres* 

 M= medulla oblongata. 

 I-XII cranial nerves (see table on p. 279). 



others conduct messages into or out from the brain along the 

 cranial nerves. In passing from one region of the brain to 

 another, a nerve impulse may run through a dozen or more 

 sets of cells and fibers. Indeed, the most intricate systems 



