What kind of blood do pulmonary and umbilical veins deliver to the heart?
Answer Oxygenated
In humans and the majority of other animals, veins are the blood channels that transport blood to the heart. Most veins transport deoxygenated blood from the tissues to the heart, with the exception of the pulmonary and umbilical veins.
Asked by Vasilii Kulev · Last updated 3 years ago · 2K views · SOURCE
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