Title |
Electron microscopy of tertiary villus (human placenta, midpregnancy) |
Creator |
Poels, Lambert G. |
Contributor |
Lambert G. Poels, PhD, UMC St Radboud Nijmegen; Paul H. K. Jap, PhD, UMC St Radboud Nijmegen |
Subject |
placenta; tertiary villi; syncytiotrophoblast; electron microscopy; placental barrier |
Description |
In the left photograph (A) is shown part of a tertiary villus with the organelle-rich cytoplasm of a syncytiotrophoblast cell (STC, 1). Below a single electron-light linked cytotrophoblast cell (CTC or Langhans cell, 2) covered by the STC. A higher magnification of another CTC (right photograph) shows the basal cytoplasmic site and a relatively thick basal lamina (arrows). The embryonic connective tissue (B) contains electron-dense spots representing calcium deposition (3) close to the basal lamina as well as partly fused with a degenerative extracellular electron-dense vacuolar structure (3) (calcium deposits are frequently encountered in placentas of smokers). Packed bundles of collagen fibrils (4) are now visible in the embryonic compartment. |
Subtype |
Image |
Format |
image/jpeg |
Rights |
http://creativecommons.org/licenses/by-nc-nd/3.0/ |
Collection |
Poja Histology Collection - Placenta |
ARK |
ark:/87278/s6p301c3 |
Setname |
ehsl_heal |
ID |
890800 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6p301c3 |