Sodium channels

... the membrane potential AT WHICH sufficient number of Na+-voltage gated channels OPEN such that the membrane permability of sodium is greater than potassium, then HOW (in general) does the membrane potential get to ...

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... with local circuits. As far as i'm aware, repolarisation is due to K+ channels opening, thus outflow causes a fall back to membrane potential. Local circuits are caused because, the influx of sodium ions is attracted to the surrounding negative regions, they then move to ...

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just because Na+ uses channels or transporters, doesn't mean, it's 100% incapable of diffusion through the membrane. But even if the sodium was wrong, your answer would be wrong also, since H2O is polar and will diffuse harder than ...

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... in the interstitial space around it. However it also has many active channels for taking up the sodium, potassium and others to increase the concentration even further. However it's also ...

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... C) By Na+ Ca+ antiports D) By simple diffusion through Calcium ion channels when their gates open Which of the following is TRUE about active ... mechanisms is responsible for maintaining a high concentration of sodium ions outside of the cell and a high concentration of potassium ion ...

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