Placenta: How it works, what's normal - Mayo Clinic
2024年3月8日 · The placenta is a structure that develops in the uterus during pregnancy. In most pregnancies, the placenta is located at the top or side of the uterus. In placenta previa, the placenta is located low in the uterus. The placenta might partially or …
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 ...
Placenta: Overview, Anatomy, Function & Complications - Cleveland Clinic
The placenta helps to keep your baby alive and healthy during pregnancy. Your blood passes through the placenta and provides oxygen, glucose and nutrients to your baby through the umbilical cord. The placenta can also filter out harmful …
What the Placenta Is and How It Forms During Pregnancy - What to Expect
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.
The placenta: What it is and how it works - BabyCenter
2022年1月3日 · 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.
Placenta - What Is It and How It Works - Biology Dictionary
2017年7月25日 · The placenta is an organ which is responsible for nourishing and protecting a fetus during pregnancy. It is unique in that it is a temporary organ; it grows alongside the fetus during pregnancy, and then is expelled along with the fetus at birth.
Placenta: anatomy and function - Kenhub
2023年10月26日 · The placenta is a highly-specialized organ that plays an essential role during pregnancy. It is responsible for providing nutrition and oxygen to the fetus as well as removing waste material and carbon dioxide.
Placenta: Its Role and Complications - Verywell Health
2024年10月31日 · The placenta has two different sides, the maternal side and the fetal side. These are held together by outgrowths, called anchoring villi, from the maternal component. The placenta is surrounded by a placental membrane or barrier, where the exchange of substances occurs between mother and fetus.
What Is a Placenta? Types, Development, Complications - MedicineNet
The placenta of humans is discoid and hemochorial, which means the shape of the placenta is disc-shaped, and the fetal part of the placenta (chorion) is in direct contact with the blood of the mother.
Placenta types, structure, function, development and …
2020年11月19日 · The placenta offers oxygen & nutrients to the growing baby and it removes waste products from your baby's blood. It develops in the uterus during pregnancy, It attaches to the wall of the uterus, and the baby's umbilical cord arises from it.