Sodium is about a hundred n forty milly mola per late extra cellulary, and potassiums pretty much the same intra celuly. If you look at sodium in the cell, it's only about ten, ten to 15,. whilst potassiums are only about four outside the cell. So they'realmost the exact opposite, ye. And it's important to do this, because can i talk a little bit about the sodium potassium pumpsi already head no, no. I've got a lot to say about the sodiumassium pumps.