The placenta (pl.: placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation.

Mar 8, 2024 · The placenta is an organ that forms in the womb, also called the uterus, during pregnancy. The placenta is connected to a developing baby by a tubelike structure called the umbilical cord.

Dec 15, 2025 · The placenta is a temporary organ that forms in your uterus during pregnancy. It attaches to your uterine wall and provides nutrients and oxygen to the fetus through the umbilical cord.

What is the placenta? The placenta is a pancake-shaped organ that develops in the uterus exclusively during pregnancy. It’s made up of blood vessels and provides your developing baby with nutrients, …

Feb 19, 2026 · The placenta is a pancake-shaped organ that develops within the wall of your uterus and connects to your baby though the umbilical cord. By the end of pregnancy, it grows to be about 9 …

During pregnancy, a special organ develops in the uterus to support the life of the fetus; this is known as the placenta. As the embryo implants in the uterus, some cells from the embryo transform into …

: the organ in most mammals by which the fetus is joined to the uterus of the mother and is nourished.

PLACENTA definition: the organ in most mammals, formed in the lining of the uterus by the union of the uterine mucous membrane with the membranes of the fetus, that provides for the nourishment of the …

Get a quick, free translation! PLACENTA definition: 1. the temporary organ that feeds a foetus (= developing baby) inside its mother's womb 2. the…. Learn more.

Feb 5, 2026 · placenta, in zoology, the vascular (supplied with blood vessels) organ in most mammals that unites the fetus to the uterus of the mother.