Final answer:
Anesthetics are drugs that cause loss of sensation or consciousness. They work by blocking nerve signals in the body, preventing them from reaching the brain.
Step-by-step explanation:
Anesthetics are drugs that cause loss of sensation or consciousness. They work by blocking nerve signals in the body, preventing them from reaching the brain. This loss of sensation or consciousness allows for medical procedures to be performed without pain or discomfort. Examples of anesthetics include general anesthetics like inhalation anesthetics and intravenous anesthetics, as well as local anesthetics.
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