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navigate by keyword : and aorta arm arteriosclerosis artificial background barrels biology blood calcification chamber cholesterol circulatory colorful colors discipline drawing education flow front function green health healthy heart hole human illustration model organ organs oxygen picture plastic plate poster pressure pump pumps red research rich school science stream study studying surveys system teaching valves vein veins vessels wallboard wallchart with |
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Artificial human heart model in front of wallchart with arm and blood flow |
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