Which of the following occurs when a stimulus depolarizes a neuron's membrane? A) Na⁺ diffuses out of the cell. B) The action potential approaches zero. C) The membrane potential changes from the resting potential to a voltage closer to the threshold potential. D) It stops the action potential from spreading to the next dendrite. E) The inside of the cell becomes more negative in charge relative to the outside of the cell.

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When a stimulus depolarizes a neuron's membrane, the membrane potential changes from the resting potential to a voltage closer to the threshold potential. This change in membrane potential can trigger an action potential if the threshold potential is reached.

Which of the Following Occurs When a Stimulus Depolarizes a Neuron's