thumb|right|350px|Basic components of Hodgkin–Huxley-type models. Hodgkin–Huxley type models represent the biophysical characteristic of cell membranes. The lipid bilayer is represented as a capacitance (C<SUB>m</SUB>). Voltage-gated and leak ion channels are represented by nonlinear (g<SUB>n</SUB>) and linear (g<SUB>L</SUB>) conductances, respectively. The electrochemical gradients driving the flow of ions are represented by batteries (E), and ion pumps and exchangers are represented by current sources (I<SUB>p</SUB>). | thumb|right|350px|Basic components of Hodgkin–Huxley-type models. Hodgkin–Huxley type models represent the biophysical characteristic of cell membranes. The lipid bilayer is represented as a capacitance (C<SUB>m</SUB>). Voltage-gated and leak ion channels are represented by nonlinear (g<SUB>n</SUB>) and linear (g<SUB>L</SUB>) conductances, respectively. The electrochemical gradients driving the flow of ions are represented by batteries (E), and ion pumps and exchangers are represented by current sources (I<SUB>p</SUB>). |