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10 cards from this deck
Closed keeps blood in vessels; open releases into cavities
Haemolymph (mixture of blood and tissue fluid)
Arteries, veins, and capillaries
55% plasma, 45% cells
Transport oxygen (via haemoglobin)
Defence of body against invaders (immune system)
Blood clotting (release thromboplastin enzyme)
Away from heart to organs
Valves at regular intervals
Atria (top), ventricles (bottom)
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