Veins - These blood vessels take blood back to the heart, Arteries - These take blood away from the heart, Capillaries - These allow exchange of substances between the blood and the cells, Red blood cells - Carry oxygen around the blood, Plasma - The liquid part of the blood, Platelets - These allow the blood to form a scab when you have a cut, White blood cells - These help infection, Blood vessels - These are the tubes that carry blood through the tissue and the organs,

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