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. 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: anatomy and function - Kenhub
网页2023年10月26日 · The main function of the placenta is the interchange between the mother and the fetus. More specifically, it provides nutrition and oxygen to the fetus and removes waste material and carbon dioxide. In this article, we will explore the anatomy and function of the placenta. Key points about the placenta. Table quiz.
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.
Physiology, Placenta - StatPearls - NCBI Bookshelf
网页2023年7月24日 · Fetal protection from any immunologic attack: The placenta holds the ability to metabolize numerous substances and protect against microbial infection. Macrophage in the stroma of the chorionic villi and syncytiotrophoblast play a critical role in the protection of the fetus.
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.
What is the placenta? - PubMed
网页Discarded at birth, the placenta is a highly complex and fascinating organ. During the course of a pregnancy, it acts as the lungs, gut, kidneys, and liver of the fetus. The placenta also has major endocrine actions that modulate maternal physiology and metabolism and provides a safe and protective ….
PLACENTA中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页noun [ C ] biology specialized uk / pləˈsen.tə / us / pləˈsen.t̬ə / plural placentas or placentae uk / -tiː / us. Add to word list. the temporary organ that feeds a foetus (= developing baby) …
Placenta | Journal | ScienceDirect.com by Elsevier
网页The journal 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 developmental ...
The placenta: a multifaceted, transient organ - PMC
网页2015年3月3日 · Its principal function is to supply the fetus, and in particular, the fetal brain, with oxygen and nutrients. The placenta is structurally adapted to achieve this, possessing a large surface area for exchange and a thin interhaemal membrane separating the maternal and fetal circulations.
The human placenta: new perspectives on its formation and …
网页2023年4月19日 · It is the first and the largest fetal organ to develop and during early pregnancy performs the functions of diverse organ systems while these differentiate and mature in utero. Furthermore, the placenta undergoes major changes in its own structure and function during gestation while providing constant support for the growing fetus.
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