The depolarization of an axon is most likely to occur when
A) positively charged sodium ions rush into the axon.
B) negatively charged potassium ions rush into the axon.
C) positively charged sodium ions rush out of the axon.
D) negatively charged potassium ions rush out of the axon.

Question

Quizplus · Accepted Answer

Depolarization occurs when positively charged ions (typically sodium ions) rush into the axon, causing the inside of the axon to become more positive, which can trigger an action potential.

The Depolarization of an Axon Is Most Likely to Occur