Question

(Propagation of an action potential along an axon at time = 1 ms) The voltage change caused by the Na⁺ currents through the open voltage gated channels causes ____.

Answer 1

The voltage change caused by the Na+ currents through the open voltage-gated channels causes depolarization of the cell membrane.

Step-by-step explanation:

The voltage change caused by the Na+ currents through the open voltage-gated channels causes depolarization of the cell membrane. When an action potential is initiated at the beginning of the axon, Na+ ions enter the cell through the voltage-gated Na+ channels, causing depolarization of a small portion of the cell membrane. This depolarization spreads along the axon as more voltage-gated Na+ channels open and more Na+ ions rush into the cell, propagating the action potential.