When Membrane Potential Changes,we Use the Terms Depolarization,hyperpolarization,and Repolarization

When membrane potential changes,we use the terms depolarization,hyperpolarization,and repolarization.Explain what is happening to the membrane potential in relation to the extracellular fluid during depolarization and hyperpolarization and how each phase could be achieved by negatively charged ions.Next,explain how it is possible for the membrane to be in both hyperpolarization and repolarization at the same time.