A physiology experiment is conducted in which Drug X is applied to a nerve axon. The drug causes a gradual decrease in the amplitude of individual action potentials and a gradual depolarization of the resting membrane potential. Drug X is most likely to inhibit which of the following?
A) Na+ inactivation
B) Na+-K+-ATPase pump
C) Voltage-gated K+ channels
D) Voltage-gated Na+ channels
Correct Answer:
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