582 



GENERAL PHYSIOLOGY 



Cell-body. 



Terminal branches. 



Fio. 282. Scheme of a neuron ; a, free axis-cylinder ; 6, axis-cylinder surrounded by iieurilemma 

 alone ; c, axis-cylinder surrounded by the medullary sheath alone ; d, axis-cylinder surrounded 

 by the medullary sheath and the neurilemma, and divided intokegments by the nodes of 

 Ranvier. (From Stohr.) 



