BIOLOGY 3P03 Lecture Notes - Lecture 10: Voltage Clamp, Exponential Growth, Depolarization
19 Oct 2017
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Recap: effects of ttx or tea on voltage-clamp currents (frog node of. Why does ik keep on increasing with more positive voltage steps: driving force gets linearly larger as vc = vm moves away from ek- po maximizes at. Note: during voltage clamp experiments, the potassium current is known as a. Delayed recti er given the delay in rise until a clamped membrane potential of 0. Recall : ina = gna (vm - ena, now gna = n po na. Where n is the total number of na+ channels and po is the probability that a channel is open and na is the single channel conductance. N and na are constants, but gna varies as a function of time and voltage because of variations in po. From the previous two equations we can get ina = n po na (vm - ena: driving force gets linearly smaller as vc = vm approaches ena- po maximizes at vm =
