The placenta is an organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing fetus while removing waste products from the fetus's blood. It forms a critical interface between the mother's and the baby's circulatory systems.
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Umbilical cord: The umbilical cord connects the fetus to the placenta, serving as a conduit for nutrients, oxygen, and waste products between the fetus and mother.
Fetal circulation: Fetal circulation refers to the system of blood vessels in a fetus that includes two umbilical arteries and one umbilical vein, facilitating blood flow between the fetus and placenta.