Definition: Aorta, heart vessel, blood supply to the body's major organs. Aortic root, primary aorta, main branch. "Optosia" meaning aorta, a name given to vessel that feeds the heart. Definition: It carries oxygenated blood from heart muscle cells to capillaries throughout the body. Involves valves and tubes that allow flow of blood in both directions. Can be damaged by many causes, including stroke, infection, tumors.
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