Draw Graphs Showing the Effect on Action Potentials in a Cell

Draw graphs showing the effect on action potentials in a cell following effective doses of each of the listed neurotoxins.Assume that the cell is normally brought to threshold by an electrical stimulus applied to it, so that any abnormality is due to the toxin.Precise values for voltage and duration are not important, just a general trend in how the action potential may be different from normal.
1.puffer fish poison (blocks voltage-gated sodium channel activation)
2.tetraethylammonium (blocks voltage-gated potassium channels)
3.ouabain (blocks sodium-potassium pumps)
4.sea anemone toxin (blocks voltage-gated sodium channel inactivation)