File:HillH52 chorionic villi 08.jpg

From Embryology

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Human Chorionic Villi

Human early placental villi development at 4-5 weeks. (Hill H52, x40) (Stain - Haematoxylin Eosin) scale bar - 50 μm)

Developing villi viewed in cross-section. Trophoblast shell enclosing mesenchyme (extra-embryonic mesoderm), containing embryonic blood vessels.

  • Trophoblast layer consists of outer syncitiotrophoblast cells and inner cytotrophoblast cells.
  • Gap between trophoblast and mesenchyme are shrinkage artefacts.

H52 Links: Whole mount low power | Whole mount villi | Chorion and villi low power | Villi high power | Villi high power | Maternal decidua | Maternal decidua and Chorion | Villi cross-section

Image source: The images from the Hill Collection (part of the Embryological Collection) are reproduced with the permission of the Museum für Naturkunde, Leibniz Institute for Research on Evolution and Biodiversity. Images are for educational purposes only and must not be reproduced electronically or in writing without permission from the Museum für Naturkunde Berlin.

HillH52slide2x40_13.jpg 24092013 scaled to 1200px

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current15:39, 22 March 2014Thumbnail for version as of 15:39, 22 March 20141,200 × 900 (229 KB)Z8600021 (talk | contribs)==Human Chorionic Villi== Human early placental villi development at 4-5 weeks. (Hill H52, x40) {{HE}} scale bar - 50 μm) {{HillH52}} HillH52slide2x40_13.jpg 24092013 scaled to 1200px

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