After repolarization, what ions are pumped out of the cell? 3 A) Sodium 6 B) Potassium C) Both sodium and potassium 12 D) Calcium

After repolarization, potassium ions are pumped out of the cell. This process helps restore the cell's resting membrane potential, ensuring that the neuron can fire again in the future. During repolarization, the potassium channels open, allowing K+ ions to flow out and re-establish a negative internal charge relative to the outside of the cell. Additionally, it's essential to note that while potassium is prominent in repolarization, sodium plays a key role in the depolarization phase, where Na+ ions rush into the cell. The strategic balance between these ions is crucial for proper nerve signaling, allowing for the many functions our nervous system performs seamlessly every day!