Membrane Potential Ionic Steady State

Equilibrium Potentials for Sodium, Potassium, and Chloride 40

Ion Channels in the Plasma Membrane 41

Membrane Potential and Ionic Permeability 41

The Goldman Equation 45

Ionic Steady State 47

The Chloride Pump 48

Electrical Current and the Movement of Ions Across Membranes 48 Factors Affecting Ion Current Across a Cell Membrane 50 Membrane Permeability vs. Membrane Conductance 50 Behavior of Single Ion Channels 52 Summary 54

Part II: Cellular Physiology of Nerve Cells 55

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