When depolarization of the cell membrane reaches threshold,which of the following occurs?
A)Opening of sodium ion channels
B)Opening of chloride ion channels
C)A negative shift in the resting potential
D)Opening of potassium ion channels

Question

Quizplus · Accepted Answer

When the cell membrane depolarizes to threshold, there is a rapid opening of voltage-gated sodium ion channels, allowing an influx of sodium ions into the cell, leading to further depolarization and firing of an action potential.

When Depolarization of the Cell Membrane Reaches Threshold,which of the Following