Which fetal umbilical vessels would find high or low concentrations of carbon dioxide?
The umbilical artery is a paired artery (with one for each half of the body) that is found in the abdominal and pelvic regions. In the fetus, it extends into the umbilical cord. Umbilical arteries supply deoxygenated blood from the fetus to the placenta in the umbilical cord. This means you find high concentrations of carbon dioxide.
