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The _______ most directly affects the rate of information processing within the central nervous system.a. number of sodium channels along an axonb. number of potassium channels along an axonc. propagation speed of action potentialsd. threshold voltage of neuronse. ratio of sodium to potassium channels
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- Imagine you changed the concentration of K+ outside a neuron such that the resting membrane potential changed to -80 mV (from the normal resting value of -70 mV). What have you changed?
- What effect did increasing the extra cellular potassium have on the resting membrane potential?
- NERNST EQUATION: Concentration gradient ≈ electrical gradient: If that ion is K+: Vm = Vrest = VK+ =