Napanuorasta

Napanuorasta, also known as the umbilical cord, is a vital organ that develops during pregnancy. It serves as a lifeline connecting the developing fetus to the placenta, which is attached to the uterine wall. The umbilical cord is composed of two umbilical arteries and one umbilical vein, all encased in a gelatinous substance called Wharton's jelly. The arteries carry deoxygenated blood and waste products from the fetus to the placenta, while the vein carries oxygenated blood and nutrients from the placenta to the fetus.

The length of the umbilical cord can vary, typically ranging from 50 to 60 centimeters. Its structure allows for some flexibility, but it can be prone to complications such as knots, prolapse, or compression, which can affect fetal well-being. Throughout pregnancy, the umbilical cord facilitates the exchange of gases, nutrients, and waste between the mother and the fetus, ensuring the proper growth and development of the baby.

After birth, the umbilical cord is no longer needed and is clamped and cut. This procedure is usually painless for the baby as the cord does not contain nerve endings. The remaining stump of the umbilical cord dries up and falls off within a few weeks, leaving behind the navel. The study of the umbilical cord and its role in fetal development is an important aspect of obstetrics and neonatology.