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  1. Placenta - Wikipedia

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

  2. What Is the Placenta — and How Does It Help Your Baby Grow?

    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 while keeping …

  3. Placenta: How it works, what's normal - Mayo Clinic

    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 …

  4. Placenta: Purpose, Anatomy, Function & Complications

    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.

  5. The placenta: What it is and how it works - BabyCenter

    May 30, 2025 · 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 …

  6. Placenta: Its Role and Complications - Verywell Health

    Mar 13, 2025 · 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 many …

  7. Five Things We Know About the Placenta and a Few We Wish We …

    Feb 12, 2021 · The placenta determines how fetuses eat, breathe and are protected from disease. It does the work of the lungs, kidneys, digestive tract and immune system while the baby …

  8. Behind Every Healthy Baby is a Healthy Placenta

    A healthy placenta is the single most important factor in producing a healthy baby. The placenta, which is in fact part of the fetus, is critical for all aspects of pregnancy from implantation to …

  9. Placenta | Human & Animal Development | Britannica

    Dec 27, 2025 · placenta, in zoology, the vascular (supplied with blood vessels) organ in most mammals that unites the fetus to the uterus of the mother.

  10. Placenta Development - Embryology

    In humans, defective placental formation underpins common pregnancy disorders such as pre-eclampsia and fetal growth restriction. The great variation in placental types across mammals …