The physiologic effects resulting from the inhalation of gaseous anesthetic agents and intravenous infusion of anesthetic drugs inhibit several areas of the central nervous system (CNS).The processes by which they occur are explained by several proposed theories.Which of the options describes a plausible anesthetic mechanism of action?

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Quizplus · Accepted Answer

Numerous proposed theories explain the action of general anesthetics.Recent investigations have involved inhalation anesthetics.Evidence suggests that synaptic transmission of nerve impulses is reversibly inhibited in several areas of the CNS.The range of anesthetic activity varies with different anesthetics;the effects on the CNS and skeletal muscles are similar but not identical;structural and spatial differences exist among agents;changes at the membrane and cellular levels occur;and optical isomers produce different responses.Although similar in many respects,anesthetic agents are individually unique and probably work through numerous mechanisms and at multiple sites to produce their effects.

The Physiologic Effects Resulting from the Inhalation of Gaseous Anesthetic