478 



MAMMALIA— PHYSIOLOGY 



Afferent or sensory neurone 

 Gray mafrer / 



Spinal cord j ' /n 



~\—5k/n 



Receptor 



White matter 



\ Efferent or motor neurone 



\ 

 Ad JUS tor neurone 



Fig. 256^^. Reflex arc. (Drawn by W. J. Moore.) 



-Ef fee for 



Olfactory — -^ 



-Cerebro - cortex 



Coudotum 



Corpora striata 



— Lenticula 



— Tfiaiamus 



Corpora quodrigennina 

 nucleus 



— -Substantia nigra 



'erebei/o - cortex 



Olive 



Fig. 2565. Chief ganglionic categories. (After Spitzka.) 



