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
2022年2月4日 · 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 waste and carbon dioxide from your baby's blood.
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 …
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.
Placenta | Journal | ScienceDirect.com by Elsevier
The journal Placenta publishes high-quality original articles and invited topical reviews on all aspects of human and animal placentation, and the interactions between the mother, the placenta and fetal development, genetics and epigenetics, stem cells, transport, immunology, pathology, pharmacology, cell and molecular biology, and ...
Placenta: anatomy and function - Kenhub
2023年10月26日 · The placenta is a temporary organ of pregnancy situated in the uterus. It is formed from fetal and maternal components. The fetal portion is formed by the chorion frondosum, while the maternal portion is formed by the decidua basalis. Moreover, the placenta is the meeting point of two circulatory systems: fetal circulation and maternal circulation.
The placenta: a multifaceted, transient organ - PMC
The placenta is arguably the most important organ of the body, but paradoxically the most poorly understood. During its transient existence, it performs actions that are later taken on by diverse separate organs, including the lungs, liver, gut, ...
Placenta: How it works, what's normal - info.johnsonmemorial.org
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. Through the umbilical cord, the placenta provides oxygen and nutrients to a developing baby. It also removes waste from the baby's blood.
胎盤 - 维基百科，自由的百科全书
胎盤（學名： placenta ），又稱「胞衣」，是一種只有在雌性 哺乳類動物懷孕時或是每一隻哺乳類動物還是胎兒時才有的暫時器官，位於子宮內側的表面。 胎盤由兩部分組成。一部分和胚胎在生物學與基因上都相連，另一部分是母體的一部分。
Embryology, Placenta - StatPearls - NCBI Bookshelf
2023年5月1日 · The placenta is a vital organ with multiple functions, such as endocrine, immune, and physiological. The placenta is formed gradually during the first three months of pregnancy, while, after the fourth month, it grows parallel to the development of the uterus. Once completed, it resembles a spongy disc 20 cm in diameter and 3 cm thick. It is a temporary organ, whose genetic characteristics are ...