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英文字典中文字典相關資料:
  • 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
  • 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
  • Placenta: How it works, whats normal - Mayo Clinic
    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
  • The placenta: What it is and how it works - BabyCenter
    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 inches in diameter and about an inch thick at the center
  • What Is a Placenta? Types, Development, Complications
    The placenta is a special organ that develops in the uterus to support the life of the fetus Learn about the placenta, including the types, development, and complications
  • What Is the Placenta — and How Does It Help Your Baby Grow?
    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, water, oxygen, antibodies against diseases, and a waste removal system
  • Human Placenta Project: How Does the 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 placenta changes over the course of pregnancy
  • What is the placenta, and what happens to it after delivery?
    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 pregnancy, but by around 12 weeks, it takes over as the primary support system for the growing baby





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