A substance which causes loss of feeling?

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Multiple Choice

A substance which causes loss of feeling?

Explanation:
Loss of feeling is produced by an anesthetic. Anesthetics block nerve signals that carry sensation, either locally at a specific area or throughout the body to make a person unconscious, which is why they numb or render a person unaware of sensations. Analgesics relieve pain without usually removing all sensation, sedatives calm or induce sleep without numbness, and narcotics (opioids) can dull pain and cause drowsiness, but they aren’t defined by causing a complete loss of feeling.

Loss of feeling is produced by an anesthetic. Anesthetics block nerve signals that carry sensation, either locally at a specific area or throughout the body to make a person unconscious, which is why they numb or render a person unaware of sensations. Analgesics relieve pain without usually removing all sensation, sedatives calm or induce sleep without numbness, and narcotics (opioids) can dull pain and cause drowsiness, but they aren’t defined by causing a complete loss of feeling.

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