Problem:

Place the following statements in the correct order for an action potential to be generated.

i.       An action potential is generated

ii.       Excitatory postsynaptic potential (ESPN's) are received

iii.      Voltage gated Na+ channels open

iv.      The cell reaches threshold

v.       A neuron starts at its resting membrane potential

vi.       Na+ flows into the cell making the inside more positive

Please provide the accurate arrangement of the following statements.