Biology - Human Reproduction Question with Solution | TestHub

The umbilical cord connects the developing fetus to the placenta.

It contains three blood vessels: two umbilical arteries and one umbilical vein.

The two umbilical arteries are smaller in diameter and carry deoxygenated blood along with waste products from the fetus to the placenta.

The single umbilical vein is larger in diameter and carries oxygenated, nutrient-rich blood from the placenta to the fetus.

Therefore, the umbilical cord is formed of two small arteries and one large vein.

Answer: two small arteries and one large vein