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5 Cards in this Set
- Front
- Back
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Cardiovascular Functions? (3)
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1. supply organ and tissues with suffcient blood at high enough pressure to maintain normal function
2. remove waste products from organs and tissues and deliver them to sites of elimination 3. release of atrial natriuretic peptide (ANP) |
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Cardiac output =
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Heart Rate x Stroke Volume
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What does Cardiac Function depend on? (3)
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1. Cardiac electrical activity
2. Cardiac contractility 3. Coronary blood flow |
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Cellular mechanism of ANP?
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Acts on Natriuretic Peptide Receptors (NPRs) linked to guanylyl cyclase => increases cGMP
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Effects of ANP? (4)
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1. increases glomerular filtration rate => increases diuresis and natriuresis
2. decreases renin and aldosterone secreation 3. decreases sodium reabsorption 4. vasodilation and increases capillary permeability (via inhibition of angiotensin II) |
