Give a schematic diagram, using arrows to show the flow of blood in our body, starting from
oxygen rich blood reaching the thin walled left atrium of the heart, by the pulmonary arteries?.

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Figure shows schematic plan of blood circulation in humans with labels A to  D. Identify the correct label and give its function/s.

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Explaining how the human circulatory system works heart lungs blood vessels  arteries capillaries veins white & red blood cells platelets plasma causes  cardiovascular disease statins stents igcse/O level/gcse 9-1 biology  revision notes
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