Sherwood- Chapter 3 & 4

Objective:  To recognize membrane potential as a concept fundamental to muscle and nerve physiology.

1.  Key ions
        a.  effect of the Na-K pump on membrane potential
        b.  effect of K alone on membrane potential
        c.  effect of Na alone on membrane potential
2.  Contributing to the membrane potential
        a.  electrogenic ion pump
        b.  Donnan Equilibrium
        c.  diffusion potentials  (Nernst Equation)
3.  Fluctuations in membrane potentials
        a.  graded potentials
        b.  action potentials