What happens as a result of an action potential once the membrane potential reaches +40mV? Question 1 Select one: a. Na+ is rushing into the cell b. Both undershoot and sodium rushes into the cell c. Both undershoot occurs and potassium is decreasing from inside the cell d. An undershoot occurs e. K+ is decreasing from inside of the cell
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Once an action potential is triggered, there is a: A. reversal of the membrane polarity, with the interior of the cell becoming positively charged B. reversal of the membrane polarity, with the interior of the cell becoming negatively charged C. sudden rush of potassium into the neuron D. sudden impermeability of the membrane to the transport of ions
Adi S.
During an action potential, a. the rising phase is due to an influx of $\mathrm{Na}^{+}$. b. the falling phase is due to an influx of $K^{+}$. c. the falling phase is due to an efflux of $\mathrm{K}^{+}$. d. Both a and $c$
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