In order to prevent a patient from experiencing pain, a local anesthetic is injected around sensory neurons to prevent an action potential. How does a local anesthetic work?
A) It inhibits the release of acetylcholine.
B) It binds to and prevents the opening of potassium channels.
C) It binds to and prevents the opening of sodium channels.
D) It binds to and opens calcium channels.

Question

Quizplus · Accepted Answer

Local anesthetics work by binding to and preventing the opening of sodium channels on neurons, which inhibits the generation and propagation of action potentials, thereby preventing the sensation of pain.

In Order to Prevent a Patient from Experiencing Pain, a Local