What is the primary function of the umbilical cord?

The primary function of the umbilical cord is to serve as a conduit between the developing embryo or fetus and the placenta. The umbilical cord is crucial for fetal development as it contains blood vessels that allow for the exchange of oxygen, nutrients, and waste products between the mother and the fetus. It connects the fetus directly to the placenta, ensuring that the growing baby receives the essential substances needed for growth and development while simultaneously removing waste materials generated by the fetus. This vital role supports the overall health and well-being of the fetus throughout pregnancy.

While the other options touch upon aspects related to pregnancy, they do not accurately represent the fundamental role of the umbilical cord. For example, while protection is important, it is not the primary function of the umbilical cord itself. Also, fetal movement is facilitated by the amniotic fluid and the space within the uterus rather than by the cord, which primarily focuses on blood and nutrient transport. Similarly, the creation of space within the uterus pertains to the overall structure of the pregnancy rather than the specific function of the umbilical cord.