Question: When the action potential begins, sodium gates open, allowing Na+ to cross the membrane. Now the polarity changes to a. Negative outside and positive inside.

When the action potential begins, sodium gates open, allowing Na+ to cross the membrane. Now the polarity changes to
a. Negative outside and positive inside.
b. Positive outside and negative inside.
c. Neutral outside and positive inside.
d. All of these are correct.

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