86 



VETEPJNAKY PHYSIOLOGY 



But the cell is also dependent for its proper nutrition upon 

 the condition of the rest of the neuron. When the axon is 

 cut, the chromatin of the cell nucleus decreases, and the 

 nucleus becomes displaced to one side, and ultimately the 

 whole cell degenerates. This is sometimes called Nissl's 

 Degeneration (see fig. 36). 



