Select all that applyThe phases of the action potential include Blank______.Multiple select question.thresholddepolarizationresting phaserepolarization

Answer

The phases of the action potential include the following:

1. Threshold - This is the level of membrane potential that must be reached for an action potential to occur. Once the threshold is reached, voltage-gated sodium channels open.

2. Depolarization - This phase occurs when sodium ions flow into the neuron, causing the membrane potential to become more positive.

3. Repolarization - Following depolarization, the membrane potential returns to a more negative value. This occurs as potassium channels open, allowing potassium ions to exit the cell.

Not Included

• Resting phase is not a phase of action potential; rather, it refers to the state of the neuron when it is not actively firing an action potential.

Final Selections

The correct phases of the action potential are:

• Threshold
• Depolarization
• Repolarization