someone help me,plz answer the question fast-what is the work of vein??
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Veins are blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. ... There are valves in most veins to prevent backflow.
System: Circulatory system
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Veins carry deoxygenated blood from the whole body(except lungs) to heart to send it for oxygenation to lungs. (Exception: pulmomary veins carry oxygenated blood from lungs to left atrium of heart).
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