Encyclopedia Article


A substance used in medical procedures to paralyze sensory nerve endings and/or nerve fibers, thus producing loss of sensation. Anesthetic substances enable patients to undergo operations and other invasive procedures that involve severe pain. Local anesthesia is used to numb a specific, small part of the body, while general anesthesia, which is used in major surgeries, affects the whole body and induces a complete loss of consciousness.

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"Operating room anesthetic station, February 14, 2013" by Coronation Dental Specialty Group is licensed under CC BY-SA.

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