Placenta - Wikipedia
网页The placenta (pl.: placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation.
Placenta: How it works, what's normal - Mayo Clinic
网页2024年3月8日 · Through the umbilical cord, the placenta provides oxygen and nutrients to a developing baby. It also removes waste from the baby's blood. The placenta is attached to the wall of the uterus. Most often, it attaches to the top, side, front or back of the uterus. Rarely, it might attach in the lower area of the uterus.
Placenta: Overview, Anatomy, Function & Complications
网页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 your baby through the umbilical cord. Certain conditions of the placenta can cause pregnancy complications. Contents Overview Function Anatomy Conditions and Disorders Care Additional Common Questions.
Placenta: Anatomy, Function, and Treatment - Verywell Health
网页2023年8月23日 · The placenta plays an absolutely crucial and essential role during the nine months of pregnancy. Via the umbilical cord and the chorionic villi, this organ delivers blood, nutrients, and oxygen to the developing fetus. In addition, it works to remove waste materials and carbon dioxide.
Placenta: anatomy and function - Kenhub
网页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. It is also responsible for creating a separation between the maternal and fetal circulation (known as placental barrier). Besides that ...
Placenta - What Is It and How It Works | Biology Dictionary
网页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.
Human Placenta Project: How Does the Placenta Form?
网页2023年5月30日 · The following illustrations show how the human placenta develops. 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 supply of blood to the placenta.
What the Placenta Is and How It Forms During Pregnancy
网页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 attaches to the uterine wall and connects to your baby via the umbilical cord.
Placental development and physiology - UpToDate
网页2023年8月18日 · Placental development is a highly regulated process that is essential for normal fetal growth and development and maintenance of a healthy pregnancy. The placenta fulfills several critical roles as the interface between mother and fetus, including:
Tracking placental development in health and disease
网页2020年1月10日 · The placenta delivers oxygen and nutrients to the growing fetus and removes waste products; as such, it is responsible for fetal wellbeing, maintained in the context of maternal health. Events in...