The term "placental" refers to anything related to the placenta, an organ that develops in the uterus during pregnancy. The placenta plays a crucial role in providing nutrients and oxygen to the developing fetus while also removing waste products. It acts as a lifeline between the mother and the baby, facilitating the exchange of essential substances. In mammals, including humans, the placenta is a vital component of reproduction. It is classified as a viviparous structure, meaning it supports live births. The health and functionality of the placenta are important for a successful pregnancy, influencing both maternal and fetal well-being.