44 



INTRODUCTION TO NEUROLOGY 



Fig. 9. Neuron of Type II from 

 the cerebral cortex of a cat. The 

 entire neuron is included in the 

 drawing: a, Axon which branches 

 freely and terminates close to the 

 cell body; d, dendrites. (After 

 Kolliker.) 



Fig. 8. Pyramidal neuron (Type 

 I of Golgi) from the cerebral cortex 

 of a rabbit. The axon gives off 

 numerous collateral branches close 

 to the cell body and then enters the 

 white substance, within which it ex- 

 tends for a long distance. Only a 

 small part of the axon is included in 

 the drawing: a, Axon; b, white sub- 

 stance; c, collateral branches of 

 axon; d, chief dendrite; p, its ter- 

 minal branches at the outer surface 

 of brain. (After Ram6n y Cajal.) 



which has the same microscopic structure as the axon, but con- 

 ducts in the opposite direction with reference to the cell body. 

 This produces a T-form unipolar cell. The axon usually arises 



