When gated sodium and potassium channels open during an action potential, what direction do the ions flow?
a. They both flow from interstitial fluid into the cytoplasm.
b. They both flow from the cytoplasm to the interstitial fluid.
c. Sodium flows from the cytoplasm to the interstitial fluid and potassium flows the opposite direction.
d. Sodium flows from the interstitial fluid to the cytoplasm and potassium flows the opposite direction.
e. Potassium flows from the interstitial fluid to the cytoplasm and sodium flows the opposite direction.
d
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