can artery carry deoxygenated blood
Arteries and veins aren’t necessarily classified by what quality of blood they are carrying but by their direction of flow. Arteries run from the heart and veins run towards. In fact the pulmonary artery is dedicated to oxygen poor blood. It’s the vessel that carries blood from your heart to your lungs to diffuse CO2 for O2. Then your pulmonary vein carries it back to your heart to then be distributed. The same is also true with the arteries and veins in the umbilical cord. The umbilical artery carries oxygen poor blood to the placenta, or away from the heart of the fetus, and the umbilical vein runs the oxygenated blood back to the fetus.