BranMuffin

*Keep in mind that different tissues have different characteristics.. for example neurons don't 'grow back' which is why degenerative diseases are so damaging, also tendons and ligaments usually have a low blood supply which makes it harder for them to repair..

The AP would not be able to propagate at all, your right in that there would be no depolarization because there (eventually) wouldn't be a gradient between the ECF & ICF. Sorry I can't answer your question about the Ek & Ena - I'm not sure what those stand for...