Which of the following statements about action potentials is incorrect?

Practice question

Question

Which of the following statements about action potentials is incorrect?

Options

Choose one · Correct answer highlighted

Action potentials occur due to ion movement across the neuron's membrane. Sodium (Na⁺) ions enter the neuron during depolarization. Potassium (K⁺) ions leave the neuron during repolarization. Action potentials can travel in both directions along an axon. Correct

Explanation

Action potentials travel in only one direction due to the refractory period, which prevents backflow.

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