| http://www.w3.org/ns/prov#value | - xygen for delivery to cells ??? ??? ??? pulmonary circulation pathway of circulation between the heart and the lungs ??? ??? ??? systemic circulation pathway of circulation between the heart and the rest of the body except the lungs ??? ??? ??? valve flap of connective tissue between an atrium and a ventricle, or in a vein, that prevents backflow of blood ??? ??? ??? red blood cells blood cells co
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