Köldökzsinór

Köldökzsinór, also known as the umbilical cord, is a vital conduit that connects a developing fetus to the placenta during pregnancy. It serves as the lifeline for the fetus, transporting oxygen and nutrients from the mother to the baby and carrying waste products away from the baby back to the mother's system. The köldökzsinór is composed of two umbilical arteries and one umbilical vein, all enveloped in a gelatinous substance called Wharton's jelly, which protects the blood vessels from compression.

The length of the köldökzsinór can vary, but it typically measures around 50 to 60 centimeters. Its structure is designed to be flexible and resilient, allowing for movement within the amniotic sac without compromising blood flow. The köldökzsinór attaches to the fetus's abdomen at the navel and to the placenta.

After birth, the köldökzsinór is no longer needed and is clamped and cut. This procedure is usually painless for the baby as the cord contains no nerve endings. A small stump remains attached to the baby's abdomen, which dries up and falls off within one to three weeks, leaving behind the navel. Medical professionals carefully inspect the köldökzsinór for any abnormalities that might indicate potential health issues for the newborn.