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Ultrastructure of the normal human placenta.

C J Jones1, H Fox

  • 1Department of Pathological Sciences, University of Manchester, U.K.

Electron Microscopy Reviews
|January 1, 1991
PubMed
Summary

This review details the ultrastructure of the human chorionic villus, focusing on the trophoblast layers and stromal components. It provides a comprehensive overview of their morphology, development, and functional interrelationships.

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Area of Science:

  • Reproductive Biology
  • Cell Biology
  • Histology

Background:

  • The human chorionic villus is crucial for placental function.
  • Understanding its ultrastructure is key to comprehending early pregnancy development and pathology.

Purpose of the Study:

  • To provide a detailed ultrastructural examination of the normal human chorionic villus.
  • To illustrate and describe the trophoblast and stromal components and their interrelationships.

Main Methods:

  • Review of existing literature and electron microscopy images.
  • Detailed morphological description of cellular and extracellular components.

Main Results:

  • Comprehensive description of the cytotrophoblast and syncytiotrophoblast, including microvilli, vesicles, and endoplasmic reticulum.
  • Detailed analysis of the trophoblastic basement membrane's structure, composition, and development.
  • Illustration and description of stromal components: reticulum cells, fibroblasts, Hofbauer cells, capillaries, and matrix.

Conclusions:

  • The ultrastructure of the human chorionic villus is complex, with distinct trophoblast and stromal compartments.
  • Interrelationships between these components are vital for placental function and development.

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