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Circulatory System

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Term
Definition
Circulatory System   transport blood to all parts of the body so that gases, nutrients,and waste products  
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Heart   2 atrium(upper chambers) 2 ventricles(lower chambers)  
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Arteries   carry blood away from the heart  
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Atrium   receive blood  
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Ventricles   pump blood out  
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Deoxygenated Blood   relatively low in oxygen  
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Oxygenated Blood   relatively high in oxygen  
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Veins   Carry blood to the heart  
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Capilaries   connect arteries and veins  
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4 valves of the heart   flaps of connective tissue and prevent backflow  
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Heart sounds   closing of valves  
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Heartbeat   is stimulated by an electrochemical impulse  
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Blood Vessels   arteries, capillaries and veins  
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White Blood Cells   lacks hemoglobin, colorless and with nucleus. Its primary role involves the body's immune system, protecting the body against invading microorganisms and foreign particles.  
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