The _____ is the blood vessel that carries blood away from the heart., artery, The _____ is the smallest kind of blood vessel in the body and it carries nutrients., capillary, The _____ is the blood vessel that carries blood towards the heart., vein, Heart ______ are tissue flaps that keep blood flowing in a single direction through the heart's chambers and out to the body, valves, The ______ is the organ which pumps blood throughout the body., heart, The ______ is the largest artery in the body which pumps fresh blood throughout the body., aorta, The __________ __________ is the system responsible for carrying blood and oxygen throughout the body., circulatory system, The _____ _______ is the largest vein in the human body, responsible for carrying deoxygenated blood back to the heart from the rest of the body, vena cava, The _______ is one of the two upper chambers of the heart which receives blood from vein., atrium, The _______ is one of the two chambers of the heart that pump blood out to the lungs and the rest of the body, ventricle

Circulatory System

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