Potential difference - the diffrence in the electrical potentialbetween twopoints, Resting potential - the difference in the electricalpotential that is maintained across the cell surface membrane of a neuron, Voltage gated channel protein - a channel protein through a cell membrane that opens or closes in response to changes in electrical potential across the membrane, Action potential - rapid fleeting change in the potential difference across the membrane due to changes in the permeability, Depolarisation - the reversal of the resting potential across the cell surface membrane of a neurone,inside becomes positively charged as compared to outside, Threshold potential - the critical potential difference across the cell surface membrane of a sensory receptor or neurone, Repolarisation - returning the potentail difference across the cell surface membrane of a neurone to normal following the depolarisation of an action potential, Refractory period - a period of time during which a neurone is recovering from an action potentail and during which another action potential cant be generated, Saltatory conduction - movement of an action potential along a myelinated axon in which the action potential jumps from one node of Ranvier to the next,

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