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Dictionary » S » Sodium channels Sodium channelssodium channels cell membrane glycoproteins selective for sodium ions. Fast sodium current is associated with the action potential in neural membranes. ![]()
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Results from our forum[NEUROSCIENCE]-Two Questions about AP Propagation... 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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Impulse propagation/local circuits and repolarisation... 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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Test Question I think I got Right but was Marked WRONG!!! ??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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Loop of Henle and Vasa Recta... 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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Pls. I need help with my hw... 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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