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  2. 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. It plays critical roles in facilitating nutrient, gas and waste exchange between the physically separate maternal and fetal circulations, and is an important endocrine organ, producing hormones that regulate both m… See more

    Evolution and phylogenetic diversity

    The placenta has evolved independently multiple times, probably starting in fish, where it originated multiple times, including the genus Poeciliopsis. Placentation has also evolved in some reptiles.
    The mamm… See more

    Structure

    Placental mammals, including humans, have a chorioallantoic placenta that forms from the chorion and allantois. In humans, the placenta averages 22 cm (9 inch) in length and 2–2.5 cm (0.8–1 inch) in thickness, … See more

     
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  2. The placenta is a temporary organ in the uterus (womb) of pregnant female mammals. Its main role is to transfer oxygen and nutrients from the mother's blood to the baby's blood, and to transfer waste molecules back from the baby's blood to the mother's.
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  3. Placentalia - Wikipedia

     
  4. Placental disease - Wikipedia

  5. Placenta - Simple English Wikipedia, the free encyclopedia

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

  7. Placenta Abnormalities - StatPearls - NCBI Bookshelf

    Oct 17, 2022 · A normal placenta is round or oval-shaped and about 22 cm in diameter. It is 2 cm to 2.5 cm thick and weighs about a pound. This activity reviews placental abnormalities and the role of the interprofessional team in …

  8. Placenta: Overview, Anatomy, Function & Complications

  9. Embryology, Placenta - StatPearls - NCBI Bookshelf

    May 1, 2023 · The placenta is a fetal organ made up of its parenchyma, chorion, amnion, and umbilical cord. The fetal structures form from the zygote and therefore separate the fetus from the endometrium. The fetal tissues form from …

  10. Placental abruption - Wikipedia

  11. Placental mammal | Characteristics & Facts | Britannica

    Placental mammal, any member of the mammalian group characterized by the presence of a placenta, which facilitates exchange of nutrients and wastes between the blood of the mother and that of the fetus. The placentals include …

  12. Human Placenta Project: How Does the Placenta Form?

    May 30, 2023 · The timeline of placental development illustrates how the placenta changes over the course of pregnancy. A crucial stage of placental development occurs when blood vessels in the lining of the uterus remodel, increasing the …

  13. Eutheria - Simple English Wikipedia, the free encyclopedia

  14. Circumvallate placenta - Wikipedia

  15. Placenta - Libre Pathology

  16. Placenta and Placental Development - Clinical Relevance

  17. Placenta accreta spectrum - Wikipedia

  18. Placentă - Wikipedia

  19. Confined placental mosaicism - Wikipedia

  20. Placenta praevia - Wikipedia

  21. Alkaline phosphatase, placental type - Wikipedia

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