The Analogy Used in the Book Referred to the Axon

question 212

Multiple Choice

The analogy used in the book referred to the axon membrane as a gatekeeper. This means that the membrane:

• A)determines whether a glial cell can pass through the axon.
• B)controls the balance of positive and negative ions on the interior and exterior of the axon.
• C)operates in an all-or-none fashion, either opening to allow neurotransmitters to pass or not.
• D)uses the nodes of Ranvier to allow some ions to move out of the axon and neurotransmitters to move into the axon.

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