Which Description Best Describes the Mechanism by Which Local Anesthetic

question 19

Multiple Choice

Which description best describes the mechanism by which local anesthetic drugs work?

• A) Anesthetic drugs bind to the sodium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.
• B) Anesthetic drugs bind to the potassium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.
• C) Anesthetic drugs bind to the sodium channels,the influx of potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.
• D) Anesthetic drugs bind to the sodium channels,the influx of sodium and potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.

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