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Names of the heart valves in order of blood flow (start where blood returns to heart finishing with blood going into aorta).
What are the tricuspid valve, the pulmonary valve, the mitral (or bicuspid) valve and the aortic valve? In between the right atria to right ventricle, right ventricle to pulmonary artery, left atrium to left ventricle and left ventricle to aorta.