Graded Potential vs AP
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Graded Potential vs AP
What's the difference between graded potential and action potential? I didn't get to copy it during review session. Thanks.
funcrazgrl- Posts : 7
Join date : 2008-01-29
Re: Graded Potential vs AP
In a graded potential, the magnitude of the hyperpolarization or depolarization varies with the strength of the stimulus. So the stronger the stimulus is, the larger change there will be in the membrane potential. However, action potentials is all or nothing and does not depend on the magnitude of the stimulus. As long as it reaches threshold, action potential will carry out.
serasarah18- Posts : 10
Join date : 2008-02-21
Re: Graded Potential vs AP
To add, an example of graded potentials is in a postsynaptic neuron. The sum of excitatory graded potentials can lead the axon hillock to produce an action potential if the sum reaches threshold.
serasarah18- Posts : 10
Join date : 2008-02-21
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