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circulatory system pathway of blood around the heart # right Atrium # Valve # Right Ventricle # Valve # Pulmonary artery # lungs # pulmonary vein # Left Atrium # Valve # Left Ventricle # Aorta # Arteries # Capillaries # VeinsRight Atrium # Vena Cava # Right Atrium I didnt give the names to the valves from the BODY, blood travels to structures such as the brains, lungs, liver, kidneys, intestines, etc. before respectively returning to the heart. Beginning from the right atrium, blood flows through the right AV valve into the right ventricle. From the right ventricle, blood flows through the pulmonary SL valve into the first portion of the pulmonary artery, the pulmonary trunk. The pulmonary trunk branches to form the left and right pulmonary arteries, which conduct blood to the gas exchange tissues of the lung. From there, blood flows through pulmonary veins into the left atrium. From the left atrium, blood flows through the left AV (mitral) valve into the left ventricle. From the left ventricle, blood flows through the aortic SL valve into the aorta. Branches of the aorta supply all the tissues of the body except the gas-exchange tissues of the lungs. Blood leaving the head and neck tissues empties into the superior vena cava. Blood leaving the lower body empties into the inferior vena cava. Both large vessels conduct blood into the right atrium, where it starts all over again. A. P.

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15y ago

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