L5: Action Potentials

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Last updated 7:07 PM on 9/1/26
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9 Terms

1
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action potential

predictable sequence by which the membrane potential is changed because of ion flow due to the predictable opening and closing of various voltage-gated channels in series

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resting state

activation gate is closed & inactivation gate is open

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activated state

activation gate is open & inactivation gate is open

4
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inactivated state

activation gate is open & inactivation gate is closed

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absolute refectory period

period where new AP cannot be generated

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relative refactory period

period where new AP can only be generated if the stimulus is very strong

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resistance

inhibition of the flow of current

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saltatory conduction

conduction along myelinated axons; AP fired at every node of Ranvier

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continuous conduction

conduction along unmyelinated axons; APs are frequently fired