Definition
"Umbilical" refers to something relating to the umbilicus, which is commonly known as the navel or belly button. It's the scar left after the umbilical cord is cut after birth. The umbilical cord connects a developing fetus to the placenta, providing nutrients and oxygen. It's an essential part of prenatal development. Understanding the umbilical cord and its role is important for understanding human biology. It's the physical connection between a mother and her baby.