one of the thick tubes that carry blood from the heart to other parts of the body, arteries, a tube with a very small diameter, especially (in plural) the tiny vessels that join veins to arteries., capillary, the red liquid that is sent around the body by the heart, and carries oxygen and important substances to organs and tissue, and removes waste products, blood, the gas formed when carbon is burned, or when people or animals breathe out, carbon dioxide, the muscle that separates the chest from the lower part of the body, diaphragm, either of the two organs in the chest with which people and some animals breathe, lungs, the organ in your chest that sends the blood around your body, heart, the regular beating of the heart, especially when it is felt at the wrist or side of the neck, pulse, the tube at the back of the throat that carries air to the lungs; windpipe, trachea, a tube that carries blood to the heart from the other parts of the body, veins, A set of organs or structures in the body that have a particular purpose., system.

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