What are the vessels in the umbilical cord of a pig?

The umbilical cord of a pig contains three primary blood vessels: two umbilical arteries and one umbilical vein. The umbilical arteries carry deoxygenated blood from the fetus to the placenta, while the umbilical vein transports oxygenated blood from the placenta back to the fetus. This vascular structure is crucial for nutrient and gas exchange during fetal development.