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Placental Membranes

  • Kurt Benirschke
  • Peter Kaufmann

Abstract

The “chorion laeve” is usually taken to be synonymous with “membranes.” It represents the “bag of waters” that encloses the fetus and is distinct from the “chorion frondosum,” which is the actual placcental tissue. The membranes normally insert at the edge of the placenta. They contain the amnionic fluid and the fetus. Membranes rupture during delivery owing to stretching or the mechanical force of the accoucheur. Several distinct layers are present in the membranes, and the structure and function of the membranes have received considerable attention primarily because of an interest in the turnover of the water they contain. Enzymatic activity of the membranes during the initiation of labor has been of additional interest. Most recently, the composition of the various extracellular connective tissue components has come under scrutiny.

Keywords

Amniotic Fluid Embolism Human Amnion Placental Membrane Amniotic Band Meconium Staining 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Kurt Benirschke
    • 1
    • 2
  • Peter Kaufmann
    • 3
  1. 1.Pathology and Reproductive MedicineUniversity of CaliforniaSan DiegoUSA
  2. 2.University Medical CenterSan DiegoUSA
  3. 3.Institut für Anatomie der Medizinischen Fakultät, Rheinisch-Westfälische TechnischeHochschule AachenAachenGermany

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