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An action potential in one segment of axon causes adjacent sections of axon membrane to reach threshold through what mechanism?

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4 votes

Answer:

The generation of local currents.

Step-by-step explanation:

An action potential at the axon hillock generates local currents that depolarize nearby sections of axon to threshold. This change in membrane potential causes voltage-gated Na+ channels to open in the adjacent axon segment. This generates/regenerates the action potential in the adjacent segment, causing the action potential to propagate away from the axon hillock.

User Derek Escue
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