During a Nerve Impulse

Question

During a nerve impulse
A) the interior of the neuron becomes more negative
B) sodium ions are pumped out of the neuron
C) sodium ions are allowed into the neuron
D) the entire neuron becomes positively charged

Accepted Answer

During a nerve impulse, sodium ions are allowed into the neuron through ion channels. This causes depolarization of the neuron, which means that the electrical charge inside the neuron becomes more positive.