Electrically gated ionic channels in lipid bilayers

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Abstract
The generation of action potentials in nerve and muscle requires cell membranes with steeply voltage-dependent ionic permeabilities. The voltage-dependent, ion-selective pathways responsible for excitation have been characterized for numerous excitable tissues such as nerve axon, muscle, electric organ, algae and epithelia (Aidley, 1971; Hodgkin, 1964; Cole, 1968). The process of activating ionic pathways by some stimulus, such as a change in membrane potential, is called gating.