Place the steps of the action potential in the correct orde

Action potentials in neurons are also known as "nerve impulses" or "spikes", and the temporal sequence of action potentials generated by a neuron is called its "spike train". A neuron that emits an action potential is often said to "fire".





-Initially, the cell is resting at around -70 mV.
-The cell becomes excited.
-Channels open and the membrane permeability to sodium is suddenly increase greatly.
-Sodium(Na+) rushes into the cell.
-Voltage-activated Potassium channels open.
-Permeability to Potassium (K+) increases slowly
-Positive charges accumulate within the cell.
-The membrane potential approaches the equilibrium potential for Sodium (E Na)
-Na channels close