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SMS-Circulatory System (Gr. 7)

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Question
Answer
What is the average resting heart rate?   60-80 bpm  
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what is a mycardical inarction?   heart attack  
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What are the pumping sections of the heart?   ventricles  
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Which sections of the heart are the receiving ones?   atria  
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What color are the largest blood cells?   white  
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Which blood cells are shaped like a donut?   red blood cells  
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Which blood cells fight disease?   white blood cells  
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What are the smallest blood cells called?   platelets  
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What helps clot the blood?   platelets  
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Which blood cells are the most numerous?   red blood cells  
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Which blood cells have hemoglobin?   red blood cells  
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What forms fibrin?   platelets  
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Which blood cells "eat" bacteria?   white blood cells  
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Which blood cells carry oxygen?   red blood cells  
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Why doesn't blood go backwards in the veins?   one-way valves  
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capillaries   the blood vessels where the exchange of oxygen and carbon dioxide is made  
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veins   the blood vessels that carry oxygen-poor blood  
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arteries   the blood vessels that carry oxygen-rich blood  
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