The Circulatory System Practice your knowledge by matching the parts of the Circulatory System with their functions. Tools A B Arteries tubes that carry blood away from the heart Veins tubes that return blood to the heart Capillaries connect arteries and veins. They are tiny tubes that exchange food, oxygen, and wastes in cells. Pulmonary circulation the movement of blood between the heart and lungs Systemic circulation the movement of blood through the rest of the body Coronary circulation movement of blood to the heart tissues Circulatory System the system of blood, vessels, and heart concerned with circulation of Plasma the watery part of blood cell that carries nutrients wastes, and blood cells. Red Blood Cells the kind of blood cell that carries oxygen to other body cells. White Blood Cells the kind of blood cell that fights germs. Platelet a tiny part of a cell that helps stop bleeding. Atrium one of two spaces in the top part of the heart that receive blood from veins. Ventricle one of two spaces in the bottom part of the heart that pump blood out of the