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Drugs in Nervous
Ch 4: Drugs used in Nervous System Disorders
| Term | Definition |
|---|---|
| Acetylcholine | Neurotransmitter for cholinergic sites; combines with nicotinic and muscarinic receptors |
| Acetylcholinesterase | Enzyme that breaks down acetylcholine |
| Adrenergic | Related to nerves that release norepinephrine or epinephrine, mimicking the "fight or flight" response |
| Analgesia | Absence of pain |
| Anesthesia | Loss of sensation, often induced by drugs to allow surgical procedures |
| Autonomic Nervous System | Controls unconscious body activities (e.g., GI motility, heart rate) |
| Catalepsy | Muscle rigidity and immobility |
| Catecholamine | Group of neurotransmitters including epinephrine, norepinephrine, and dopamine |
| Cholinergic | Related to nerves that release acetylcholine |
| Effector | Organ or cell that responds to a nerve impulse |
| Ganglionic Synapse | Synapse between preganglionic and postganglionic neurons in the autonomic nervous system |
| Minimum Alveolar Concentration (MAC) | Measure of inhalant anesthetic potency, preventing movement in 50% of patients |
| Muscarinic Receptors | Cholinergic receptors found at postganglionic parasympathetic nerve endings and some sympathetic ones |
| Neuroleptanalgesia | State of central nervous system depression and analgesia induced by an opioid and a tranquilizer |
| Nicotinic Receptors | Cholinergic receptors found at all autonomic ganglia, adrenal medulla, and neuromuscular junction |
| Parasympathetic Nervous System | Division of the autonomic nervous system that regulates energy-conserving activities |
| Parasympatholtic | Drug that reduces parasympathetic nervous system activity; anticholinergic |
| Parasympathomimetic | Drug that mimics parasympathetic nervous system activity; cholinergic |
| Precision Vaporizer | Device that converts liquid inhalant anesthetic to a precise gas concentration |
| Sedative | Drug that suppresses brain activity and awareness, often causing drowsiness |
| Sympathetic Nervous System | Division of the autonomic nervous system that regulates energy-expending activities (fight-or-flight) |
| Sympatholytic | Drug that disrupts/inhibits sympathetic nervous system activity; adrenergic blocking agent |
| Sympathomimetic | Drug that mimics sympathetic nervous system activity; adrenergic agent |
| Tranquilizer | Drug that calms a patient without excessive sedation, reducing anxiety |
| Vapor Pressure | Measure of an inhalant anesthetic's tendency to evaporate |
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