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Establishing the resting membrane potential requires energy through the use of the _______.
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- Which of the following is not integral to the action potential waveform?a. A change in permeability of the membrane to sodiumb. A change in permeability of the membrane to potassiumc. A transient increase in the sodium currentd. An initial decrease in the potassium currente. A "self-activating" aspect to the rise in the sodium current
- Action potentials are generateda. at most subthreshold voltages.b. only when the cell reaches threshold.c. only when the membrane potential exceeds threshold by 5 to 10 millivolts.d. intermittently, but usually when the membrane potential exceeds threshold.e. only after all of the sodium channels are open.
- 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