試題詳解

12. For a neuron at rest with a membrane potential of -65 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the _.

(A) depolarization of the neuron

(B) hyperpolarization of the neuron

(C) replacement of potassium ions with sodium ions

(D) replacement of potassium ions with calcium ions

(E) neuron switching on its sodium-potassium pump to restore the initial conditions