Which of the Following Represents the Sequence of Ion Movements

question 119

Multiple Choice

Which of the following represents the sequence of ion movements that causes an action potential?

• A)Sodium ions move into the axon and then potassium ions move out of the axon.
• B)Sodium ions move out of the axon and then potassium ions move into the dendrite.
• C)Potassium ions move out of the dendrite and then sodium ions move into the axon.
• D)Sodium ions move out of the axon and then potassium ions move into the axon.

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