placentální

Placentální refers to anything related to the placenta. The placenta is a temporary organ that develops in the uterus during pregnancy. It provides oxygen and nutrients to the growing baby and removes waste products from the baby's blood. The placenta is connected to the baby by the umbilical cord. After birth, the placenta is expelled from the uterus.

Placentální mammals are a subclass of mammals that give birth to live young after a period of internal development, during which the embryo is nourished by the placenta. This group includes most of the world's mammals, such as humans, dogs, cats, and whales. In contrast, marsupials give birth to relatively undeveloped young that complete their development in a pouch, and monotremes lay eggs.

The study of the placenta and its functions is known as placentology. Research in this field explores various aspects, including placental development, its role in fetal growth and development, placental disorders, and the impact of maternal health on placental function. Understanding placentální biology is crucial for ensuring healthy pregnancies and outcomes for both mother and child.