Chap. XIX] THE NERVOUS SYSTEM 



365 



wenvE CELu— — 



^DENOniTES. 



NAKED 

 AXIS-CYLINDER. 



-AXIS-CYLINDER PROCESS. 



COLLATERAL BRANCH. 



AXIS-CYLINDER 

 CLOTHED WITH 

 MEDULLARY * 

 SHEATH. 



— MEDULLARY SHEATH. 



— AXIS-CYLIfiOER. 



AXIS-CYLINDER 



CLOTHED WITH 



MEDULLARY ■ 



SHEATH AND 



NEURILEMMA. 



AXIS-CYLINDER I || 

 CLOTHED WITH < ! 



ITH- 

 NEURILEMMA. 



—NEURILEMMA, 



NAKED 



Axis-cylinder. 



/ 



TERMINAL BRANCHES. 



Fig. 175. — A Neurone. (Gcrrish.) 



