Section II

Membrane Potentials
(Chapter 5)

I.   Distribution of Ions

II.  Factors causing unequal distribution of ions
          A.   Na/K Pump
          B.   Donnan Equilibrium

III. Consequence of unequal distribution - Resting membrane potential
          A.   Diffusion of K+
          B.   Goldman equation
          C.   The Nernst equation

IV.  Action potential
         A.   Description
         B.   Ionic Explanation

 

         C. Propagation

V. Factors causing action potentials
        A.   Mechanical stimulation
        B.   Electrical stimulation
               1)Components
               2)Example
       C.   Chemical (neurotransmitters)
               1)Vocabulary
               2)Characteristics

VI. Factors altering excitability
        A.   K+
        B.   Ca+
        C.   Anesthetics 


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