When is an action potential initiated? When

waelhammad

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2022-10-19

the resting membrane potential changes from −70 mV to +30 mV
a nerve impulse has caused some muscle action to be produced.
the potassium ‘gates’ in the cell membrane open and potassium ions fl ood into the cell.
a stimulus, which is above the threshold level, is applied to a receptor.

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waelhammad

2022-10-19

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D: A stimulus which exceeds the threshold level is required to generate an action potential.

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