Refer to the Figure Showing the Conduction of an Action

question 167

Multiple Choice

Refer to the figure showing the conduction of an action potential traveling from left to right in a myelinated axon.Note the action potential at node 2. Which statement about this axon is false?

• A) Area 1 is a node of Ranvier.
• B) An action potential will be triggered at node 3 as a result of the action potential occurring at node 2.
• C) Action potentials can jump rapidly from node 1 to node 2.
• D) An action potential traveling from left to right will leave node 1 refractory because its Na⁺ channels are still open.
• E) Node 1 participates in saltatory conduction.

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