Singapore Cord Blood Bank services, but retain ownership over the use of their cord blood. Cord blood is the blood that circulates through the umbilical cord from the foetus to the placenta. After delivery, the placenta is almost always thrown away. Yet this humble umbilical cord has become a life saving and precious commodity, because cord blood is rich in blood stem cells. Blood stem cells are young or immature cells that can transform into other forms of essential blood cell types (pluripotent), such as red blood cells, white blood cells and platelets. The use of blood stem cells has emerged as a potentially
Umbilical cord carries oxygenated, nutrient-rich blood to the fetus, and two arteries that carry deoxygenated, nutrient-depleted blood away. Occasionally, only two vessels (one vein and one artery) are present in the umbilical cord. This is sometimes related to fetal abnormalities, but it may also occur without accompanying problems. It is unusual for a vein to carry oxygenated blood and for arteries to carry deoxygenated blood (the only other examples being the pulmonary veins and arteries, connecting the lungs to the heart). However, this naming convention reflects the fact that the umbilical vein carries blood towards the fetus's heart, while the umbilical arteries