New answers tagged theoretical-neuroscience
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In equilibrium there are more positive ions on the outside of the cell as on the inside. This is where the potential is set to zero. Now you can use both types of ions. Positive as well as negative. When you pump in negative ions the potetial difference will grow. But then no signal will run along the neuron's axon. When the small channels are opened only ...
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Both positive and negative charges are pumped in; in fact, you can't really do one without doing the other, it just happens in different places. When you "pump in positive" charge you are making the electrode contiguous with the inside of the cell more positive while making a ground electrode in your bath more negative. If you "pump in ...
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