 Cardiorespiratory system  Heart  Atria, ventricles  Blood vessels  Arteries and veins  Capillaries and venules  Respiratory system  Lungs (alveoli)  Supplies oxygen to the body and removes carbon dioxide http://www.nhlbi.nih.gov/health/dci/images/heart_interior.gif http://www.accessexcellence.org/AE/AEC/CC/images/vessel.gif
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