https://en.wikipedia.org/wiki/Placenta
The placenta (pl.: placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation.
https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/placenta/art-20044425
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 cal
https://my.clevelandclinic.org/health/body/22337-placenta
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 throug
https://www.whattoexpect.com/pregnancy/placenta
The placenta is your baby’s lifeline. This pancake-shaped organ connects your baby to your body via the umbilical cord, delivering nutrients, oxygen, and removing waste — all w
https://www.babycenter.com/pregnancy/your-baby/the-placenta-what-it-is-and-how-it-works_40005564
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
https://www.verywellhealth.com/placenta-anatomy-4844343
Jan 26, 2026 · What Is the Placenta? The placenta is a temporary organ that develops in the uterus during pregnancy. It connects the uterus to the developing baby and performs man
https://www.nebraskamed.com/health/conditions-and-services/womens-health/what-is-the-placenta-and-what-happens-to-it-after
May 26, 2026 · The placenta produces hormones such as progesterone and estrogen, which play an important role in labor and birth. The placenta is always developing in early pregna
https://scienceinsights.org/what-is-the-placenta-and-what-does-it-do/
The placenta is a temporary organ that develops during pregnancy, serving as the interface between the mother and the developing fetus. It forms shortly after the blastocyst implan
https://www.nichd.nih.gov/research/supported/human-placenta-project/how-does-placenta-form
Human Placenta Project: How Does the Placenta Form? The following illustrations show how the human placenta develops. The timeline of placental development illustrates how the plac
https://www.britannica.com/science/placenta-human-and-animal
Jun 11, 2026 · placenta, in zoology, the vascular (supplied with blood vessels) organ in most mammals that unites the fetus to the uterus of the mother.