This Tutorial is based on Figure 6 of Chapter 1 of "Ionic Channels of Excitable Membranes" by B. Hille.  
  That figure is the best explanation of voltage-dependent channels that I have ever heard or seen.  
       
  Voltage dependence Open Prob +V limit Number of Channels      
  Voltage midpoint (mV) Open Prob -V limit Single Channel conductance (pS)      
  Voltage Steepness factor (mV)     Reversal potential (mV)      
     
     
     










 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

© 2008 J.P. Dilger. Please send comments or suggestions to: James.Dilger@stonybrook.edu
 
 
   
 
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