Which of the Following Statements Regarding the Phases of an Action

question 120

Multiple Choice

Which of the following statements regarding the phases of an action potential is correct?

• A)During the depolarizing phase, the permeability of the membrane to Na⁺ is greater than its permeability at rest
• B)During the repolarizing phase, the permeability of the membrane to K⁺ is greater than its permeability at rest
• C)The relative refractory period of the membrane coincides with the hyperpolarized and second repolarizing phases
• D)Both during the depolarizing phase, the permeability of the membrane to Na⁺ is greater than its permeability at rest and during the repolarizing phase, the permeability of the membrane to K⁺ is greater than its permeability at rest are correct
• E)All of the choices are correct

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