differentiate between Arteris and veins
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Arteries carry pure blood to body parts and they are thick.
Veins carry impure blood to heart and they are thin.
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Arteries:
- They carry blood from the heart to all the parts of the body.
- They mostly carry oxygenated blood.
- The exception of carrying oxygenated blood, is pulmonary artery, which carries deoxygenated blood from the heart to the lungs.
- The blood in the arteries are under high pressure because they are to be transported to all the parts of the body.
- The arteries have thick walls.
Veins:
- The veins carry blood from the different parts of the body to the heart.
- They mostly carry deoxygenated blood.
- The exception of veins carrying deoxygenated blood, is pulmonary vein, which carries oxygenated blood from the lungs to the heart back.
- The blood in veins are not under high pressure. The blood inside the veins move with the help of valves.
- The veins have thin walls.
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