288 



THE NERVOUS SYSTEM 



as a result of experimental and pathologic research it is known that specific 

 differences in function are correlated with these differences in structure. 



The maps of the cortical areas furnished by Brodmann are reproduced in 

 Figs. 216 and 217. He recognizes eleven general regions, and each of these may 



20 



Fig. 217. 



Figs. 216 and 217. Areas of the human cerebral cortex each of which possesses a distinctive 

 structure: Fig. 216, lateral view; Fig. 217, medial view. (Brodmann.) 



be subdivided into smaller areas on the basis of characteristic differences in 

 structure. Some of these differences are visible to the naked eye and have 

 been represented in Fig. 218. 



