A hyperpolarizing stimulus makes the interior of the neuron even more negatively charged.

Question

Quizplus · Accepted Answer

A hyperpolarizing stimulus (e.g. the opening of K+ channels) increases the permeability of the membrane to K+ ions, which moves out of the cell, making the interior more negatively charged than before. Therefore, the membrane potential becomes even more negative than its resting potential (-70mV), thus resulting in hyperpolarization.

A Hyperpolarizing Stimulus Makes the Interior of the Neuron Even