What is the role of sodium and potassium ions in transmitting a signal down the axon?

Question

Quizplus · Accepted Answer

Sodium and potassium ions play a critical role in transmitting an electrical signal down the axon. When the signal reaches the axon, sodium ions rapidly enter the cell, causing a depolarization of the cell membrane. This change in charge difference across the membrane creates an electrical signal that travels down the axon. As the signal travels down the axon, potassium ions follow the sodium ions out of the cell, helping to repolarize the cell membrane and restore the resting potential. Therefore, choice B is the best answer as the change in the electrical charge difference across the cell membrane is crucial to transmit the signal down the axon.

What Is the Role of Sodium and Potassium Ions in Transmitting