Biology — Resting Membrane Potential
Ion pumping and the resting potential of a neuron.
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\text{Na}^+/\text{K}^+ \text{ pump: 3 Na}^+ \text{ out, 2 K}^+ \text{ in}
E_K \approx -90\ \text{mV (Nernst)}
V_{rest} \approx -70\ \text{mV}
\text{depolarisation moves toward } 0