As soon as an action potential at one point along the axon occurs, there is a brief reversal of the membrane's electrical charge. Now the inside of the axon is positive relative to the outside of the axon. This reversal of charges is due to the flow of __________ ions into the axon.
A) positively charged potassium
B) negatively charged potassium
C) positively charged sodium
D) negatively charged sodium
E) both negatively and positively charged sodium

Question

Quizplus · Accepted Answer

The reversal of charges during an action potential is due to the flow of positively charged sodium ions into the axon.

As Soon as an Action Potential at One Point Along