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| navigate by keyword : heart lungs circulation blood flow pulmonary systemic artery vein oxygenated deoxygenated cardiovascular system diagram medical anatomy physiology health biology healthcare body human vessels capillaries red cells blue scientific educational learning infographic science internal organs care life support network branching circulatory education biological vessel chart anatomical |
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| Diagram of the heart and lungs showing pathways of oxygenated (red) and deoxygenated (blue) blood. The heart's chambers are visible in the center, with arteries and veins extending to both lungs. Red pathways indicate oxygen-rich blood leaving the heart, while blue pathways show oxygen-poor blood returning for re-oxygenation in the lungs. Arrows depict the direction of blood flow, emphasizing the circulatory process. |
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