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circulatory system (heart (Atria: receives blood from the heart,…
circulatory system
heart
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Tricuspid valve: on the right side, prevents blood from flowing back to the right atrium.
mitral valve: on left side, prevents blood from flowing into the left atrium
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blood
red blood cells: they transport oxygen and CO2, iron helps them transport the gas.
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plasma: 55% of blood is plasma, plasma helps maintain blood pressure.
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blood vessels
artery: flows blood to the body from the heart, they are thick to help pump blood and maintain blood pressure.
veins: they flow blood to the heart, they have valves to fight gravity.
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circulation
pulmonary circulation: it is done by the right side of the heart, the blood flows between heart and lungs
systemic circulation: it is done by the left side, blood flows from heart to the brain and body.
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