The outflow of potassium ions during an action potential results in:
A)Hypopolarization
B)Hyperpolarization
C)Depolarization
D)Another action potential

Question

Quizplus · Accepted Answer

The outflow of potassium ions leads to hyperpolarization, which is the increase of the negative charge inside the neuron relative to the outside, making it more difficult to generate another action potential. Depolarization refers to the reduction of the negative charge inside the neuron, usually caused by an inflow of positively charged ions, which initiates an action potential. Hypopolarization is not a recognized term. Another action potential may occur if the necessary threshold is reached after repolarization.

The Outflow of Potassium Ions During an Action Potential Results