. Olfactory lobe 



Cerebral 

 hemisphere "" 



-Diencephalon. 



-^ Optic lobe - 



- Cerebellum - 



^^ Medulla __ 

 oblongata 



■ Olfactory lobe 



_ Cerebral 

 hemisphere 



^ Optic lobe ^ 



^ Cerebellum - 



Medulla 

 " oblongata ~" 



(B) Amphibian 



{C) Reptile 



CHAPTER 



4 



RESPONSIVENESS 



IN 

 VERTEBRATES 



Fig. 4.1. Brains of representative vertebrates, from dorsal view. 



Olfactory lobe 



Cerebral 

 hemisphere 



Cerebellum 



Medulla . 

 oblongata 



Cerebral 



hemisphere 



(D) Bird 



{E) Mammal 



{¥) Human 



86 



