Classical Descriptions Of The Action Potential

A. Electrochemical Potentials and Voltage-Dependent Membrane Conductances

Changes in electrical potential in excitable cells are driven by movement of ions through ion-specific membrane conductances. For a perfectly specific conductance G, the current across the membrane I = G x (Vm— Vn), where Vm is the electrical potential across the membrane and Vn is the equilibrium potential for the ion, given by the Nernst equation:

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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