PROPERTIES OF THE NERVE CELL. 



133 



terminal arborization. By this means the neurons of this type may 

 be brought into physiological connection with a number of other 

 neurons. This kind of nerve 

 cell is frequently described 

 as the typical nerve cell. 

 Golgi supposed that it rep- 

 resents the motor type of 

 cell, and this view is, in a 

 measure, borne out by sub- 

 sequent investigation. The 

 distinctly motor cells of the 

 central nervous system r^ggji 

 such, for instance, as the g| 

 pyramidal cells of the cere- 

 bral cortex, the anterior horn 

 cells of the spinal cord, the 

 Pur kin je cells of the cere- 

 bellum all belong to this 





Fig. 61. Golgi cell (second type). 

 The axon, a, divides into a number of 

 fine branches. (From Obersteiner, after 

 Andriezen.) 



Fig. 62. Normal anterior horn cell 

 (Warringtori) , showing the Nissl granules in the 

 cell and dendrites: a, The axon. 



type. But within the nerve axis most of the conduction from 

 neuron to neuron, along sensory as well as motor paths, is made 

 with the aid of such structures, the dendrites being the receptive 

 or sensory organ and the axon the motor apparatus. 



The Golgi cells of the second type (Fig. 61) are relatively less 

 numerous and important. They are characterized by the fact 

 that the axon process instead of forming a nerve fiber splits into 

 a great number of branches within the gray matter. Assuming 



