Aktionspotential -Ablauf [Depolarisation, Repolarisation, Hyperpolarisation] - [Biologie, Oberstufe]

This video is about the action potential. The action potential describes a sudden and transient change in the membrane potential along the axon membrane. The temporal course of an action potential can be divided into four phases: the resting potential, depolarization, repolarization, and hyperpolarization. The action potential results from rapid changes in voltage-gated sodium and potassium channels in the axon membrane. This video explains the individual phases (resting potential, depolarization, repolarization, and hyperpolarization) at the molecular level, as well as other important terms such as the threshold potential and the refractory period.