21. There are two phases to the depolarizing  block. 22. The additivity of Holevo information for the depolarizing  channel was proved by Christopher King. 23. In this sense, the depolarizing  channel can be treated as a classical channel. 24. In a normal heart the atria depolarize  and repolarize in a very organized fashion. 25. The resting potential must be established within a cell before the cell can be depolarized . 26. After a cell has been depolarized , it undergoes one final change in internal charge. 27. The depolarizing  neuromuscular blocker succinylcholine causes fasciculations. 28. Dendritic spikes allow backward propagating signals to reach and depolarize  the post-synaptic membrane. 29. Showing the depolarizing  effect of the dipole. 30. Smaller neurons have higher membrane resistance and require lower depolarizing  current to reach spike threshold.