Term
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Definition
| stimulate the sympathethic nervous system |
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Term
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Definition
| substances that can produce a sympathomimetric response. |
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Term
| Vasoactive Sympathomimetics |
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Definition
| pressors,inotropesaka cardioselective sympathomimeticsused to support the heart during cardiac faliure or shock |
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Term
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Definition
| located throughout the body; are receptors for the sympathetic neurotransmitters; alpha,beta,dopaminergic |
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Term
| Alpha 1 Adrenergic receptors |
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Definition
| located on postsynaptic effector cells( the cell,muscle,or organ that the nerve stimulates) |
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Term
| Alpha 2 Adrenergic receptors |
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Definition
| located on presynaptic nerve terminals;(the nerve that stimulates the effector cells);control the release of neurotransmitters. |
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Term
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Definition
| bind to adrenergic receptors, but inhibit or block stimulation of the sympathetic nervous system |
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Term
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Definition
| block stimulation of B receptors in the SNS; compete with norepinephrine and epinephrine. |
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Term
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Definition
| drugs that stimulate the parasympathetic nervous system (PSNS);aka cholinergic agonists or parasympathomimetics. mimic the effects of the PSNS neurotransmitter acetylcholine |
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Term
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Definition
| located on the ganglia of both the PSNS and the SNS; stimulated by the alkaloid nicotine |
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Term
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Definition
| located postsynaptically in the effector organs of the PSNS; smooth muscle,cardiac muscle, glands;can be stimulated by the alkaloid muscarine. |
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Term
| Cholinergic blocking drugs |
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Definition
| drugs that block or inhibit the actions of acetylcholine in the parasympathetic nervous system (PSNS); aka anticholinergics. |
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Term
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Definition
| drugs that increase the force of myocardial contraction; used to treat heart muscle failure. |
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Term
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Definition
| force or energy of muscular contractions |
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Term
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Definition
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Term
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Definition
| the conduction of electrical impulses. |
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Term
| Positive inotropic effect |
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Definition
| increase in force and velocityof myocardial contraction (without an increase in oxygen consumption) |
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Term
| Negative chronotropic effect |
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Definition
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Term
| Negative dromotropic effect |
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Definition
| decreases automatically at SA node, decreases AV nodal conduction, and other effects; increased stroke volume, reduction in heart size during diastole, decrease in venous BP and vein engorgement, increase in coronary circulation,promotion of diuresis due to improved blood ciculation ( kidney's functioning better) |
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Term
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Definition
| drugs used for the treatment and prevention of disturbances in cardiac rhythm |
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Term
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Definition
| any deviation from the normal rhythm of the heart |
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Term
| Angina pectoris (Chest Pain) |
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Definition
| when the supply of oxygen and nutrients in the blood is insufficient to meet the demands of the heart, the heart muscle aches; the heart requires a large supply of oxygen to meet the demands placed on it. |
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Term
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Definition
| poor blood supply to an organ |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| > or equal 160 sys; > or equal 100 dia. |
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Term
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Definition
| cardiac output x systemic vascuar resistance |
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Term
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Definition
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Term
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Definition
| drugs that accelerate the rate of urine formation; result in removal of Na and water. |
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Term
| Loop diuretics: Mechanism of action |
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Definition
| act directly on the ascending loop of henle to inhibit chloride and sodium resorption. |
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Term
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Definition
| work mostly in the proximal tubules; pulls water into the renal tubules from the surrounding tissues; inhibits tubular resorption of water and solutes,producing a rapid diuresis |
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Term
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Definition
| work mostly in the proximal tubules; pulls water into the renal tubules from the surrounding tissues; inhibits tubular resorption of water and solutes,producing a rapid diuresis |
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Term
| Potassium Sparing diuretics |
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Definition
| work in the collecting ducts and distal convoluted tubules;interfere with sodium potassium exchange; prevent potassium from being pumped into the tubule, thus preventing its secretion. the excretion of sodium and water is promoted. |
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Term
| Thiazide and thiazide like diuretics |
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Definition
| inhibit tubular resorption of sodium, chloride, and potassium ions; primarily in the distal convoluted tubules; results in water, sodium, and chloride being excreted. |
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Term
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Definition
| inhibit the action or formation of clotting factors; prevents clot formation. Have no direct effect on a blood clot that is already formed. |
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Term
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Definition
| inhibit platelet aggregation;prevent platlet plugs. |
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Term
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Definition
| break down exisiting clots. |
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