Transcription: The heart pumps blood through the circulatory system, which transports nourishment to and waste products from every part of the body. The lungs remove carbon dioxide and oxygenate the blood. Oxygen-poor blood is fed through the pulmonary artery into the lungs. Oxygen-rich blood flows through the pulmonary vein back to the heart where it is pumped to the body. When it returns from the body, it is low in oxygen. It flows into the heart and is circulated back through the lungs. The carotid artery carries oxygen-rich blood to the head. Blood returns to the heart via the jugular vein. It is then pu ...
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