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20 Cards in this Set
- Front
- Back
Pulmonary System
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Low pressure system
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Systemic Circ System
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High pressure circ
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A-V valve location
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Between atrium and ventricles
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Tricuspid Valve
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Between right atrium and the right ventricle
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Bicuspid Valve
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Between left atrium and left ventricle
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When do av valves open
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ventricular diastole
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When do av valves close
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ventricular systole
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Where are pulm sl valves located
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between right ventricle and right pulm artery
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Where are the aortic sl valves located
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between the left ventricle and the aorta
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Where is the av node located
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The crux = at the two anatomic grroves at post side of heart
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What happens with damage to chordae tendinae or paillary muscles
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Backflow of blood into atrium leading to prolapse or regurgitation during ventricular systole
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What is a regurgitation
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It's a problem with closure, valve is not closing properly
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Mitral regurgitation affects what
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It's an av valve so it affects (closure), and av valves close during ventricular systole
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Aortic regurgitation affects what
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It's an sl valve -regurg, so it affects closure during ventricular diastole
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What is stenosis
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It affects opening of the valve, decreasing amount of blood coming through
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what is mitral stenosis
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It is a problem of blood flow though an open valve (av valves open on ventricular diastole)
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When does blood flow to the myocardium
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Blood enters the coronary arteries on diastole
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What is preload
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Degree of myocardial stretch before contractions(at diastole) left ventricular edv
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What is preload based on
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Amount of venous return and ejeciton fraction
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What may cause contractility to increase(meds)
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calcium or epinephrine
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