Local anesthetics eliminate the pain response by inhibiting the sensory nerves that carry painful stimuli to the central nervous system. Select a true statement about the mechanism of action of the local anesthetics.
A. Conduction of impulses along the nerves is blocked.
B. Nerve depolarization is prevented.
C. Sodium ions are blocked from passing through the cell membrane.
D. All of the above are true.
Answer: D
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