How Do Na⁺ Ions Enter a Neuron When an Action

question 3

Multiple Choice

How do Na⁺ ions enter a neuron when an action potential is initiated?

• A)the Na⁺/K⁺-ATPase
• B)a gated Na⁺ pump
• C)a voltage-gated Na⁺ channel
• D)the ligand-gated Na⁺ channel
• E)a voltage-gated Na⁺ facilitated transporter

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