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8 Cards in this Set
- Front
- Back
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Afterload
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the amount of pressure in the aorta that must be overcome for blood to be ejected from teh left ventricle
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Contractility
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the strenth of contraction of the heart
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Heart Failure
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the inability of the ventricles to pump enough blood to meet the body's metabolic demands
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Inotropic Effect
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the ability to increase the strength of contraction its a positive effect
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Natriuretic Peptide
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hormone that increases the urinary excretion of sodium and dilates blood vessels
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Peripheral Edema
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swelling of the feet and ankles and engorgement of organs such as the liver
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Phosphodiesterase
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enzyme in muscle cells that cleaves phosphodiester bonds its inhibition increases myocardial contractility
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Preload
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the degree to which the heart fibers are stretched just prior to contraction
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