Where do the doctor or nurse inject the blood into our body is it for arteries or veins why.?.
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During the procedure, a catheter (a long, thin tube) is placed inside an artery in your groin or arm and guided into your heart. Then a dye is injected into the catheter and enters your blood vessels or heart chambers. Finally, X-rays are taken to show clear photos of the inside of your heart and coronary arteries.
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Answer:
veins .......
Explanation:
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. In contrast to veins, arteries carry blood away from the heart.
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