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Architecture of Normal Villous Trees

  • Kurt Benirschke
  • Peter Kaufmann

Abstract

The ramifications of the villous trees can be subdivided into segments that differ mainly as to caliber, stromal structure, vessel structure, and position within the villous tree (Figure 64). Five villous types have been described (Kaufmann et al., 1979; Sen et al., 1979; Castellucci & Kaufmann, 1982a,b; Kaufmann, 1982; Castellucci et al., 1984, 1990; Burton, 1987), some of which can be further subdivided. As is discussed, all villous types derive from single precursors, the mesenchymal villi, which correspond to the tertiary villi of the early stages of placentation.

Keywords

Human Placenta Capillary Loop Villous Tree Intervillous Space Fetal Vessel 
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 1995

Authors and Affiliations

  • Kurt Benirschke
    • 1
  • Peter Kaufmann
    • 2
  1. 1.University Medical CenterUniversity of California, San DiegoSan DiegoUSA
  2. 2.Institut für Anatomie der Medizinischen FakultätRheinisch-Westfälische Technische Hochschule AachenAachenGermany

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