Use the answer code to answer the questions in this section: -Permeability change that occurs at threshold. A)increased P_Na+ B)decreased P_Na+ C)increased P_K+ D)decreased P_K+ E)Na⁺inward current F)Na⁺ outward current G)K⁺ inward current H)K⁺ outward current

Question

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At threshold, there is an increased permeability to Na+ (P_Na+), leading to an inward Na+ current that initiates the depolarization phase of the action potential.

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