study guides for every class that actually explain what's on your next test Heart valves
from class: Microbiology Definition Heart valves are structures in the heart that regulate blood flow between its chambers and ensure it moves in one direction. They prevent backflow of blood, maintaining efficient circulation.
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Predict what's on your test 5 Must Know Facts For Your Next Test The four main heart valves are the mitral, tricuspid, aortic, and pulmonary valves. Infective endocarditis is an infection of the heart valves typically caused by bacteria entering the bloodstream. Streptococcus and Staphylococcus species are common bacterial pathogens responsible for infective endocarditis. Vegetations formed by bacteria on heart valves can lead to emboli, which may cause serious complications like stroke or organ damage. Diagnosis of infective endocarditis often involves echocardiography and blood cultures to detect bacterial presence. Review Questions What are the primary functions of heart valves in the circulatory system? Which bacterial species are most commonly associated with infective endocarditis? What diagnostic methods are used to identify infective endocarditis on heart valves? "Heart valves" also found in:
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