Why Are Action Potentials Usually Conducted in One Direction

question 62

Multiple Choice

Why are action potentials usually conducted in one direction?

• A) Ions can flow along the axon in only one direction.
• B) The brief refractory period prevents reopening of voltage-gated Na+ channels.
• C) The axon hillock has a higher membrane potential than the terminals of the axon.
• D) Voltage-gated channels for both Na+ and K+ open in only one direction

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