In the First Phase of Triggering an Action Potential in a Neuron

question 202

Multiple Choice

In the first phase of triggering an action potential in a neuron, Na⁺ ions flow in and

• A) only trigger a negative feedback loop.
• B) only trigger a positive feedback loop.
• C) only activate the sodium/potassium pump.
• D) trigger a negative feedback loop and activate the sodium/potassium pump.
• E) trigger a positive feedback loop and activate the sodium/potassium pump.

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