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Cell contact area in a 4-cell embryo

Very high power TEM of a section of a stage 2, 4-cell embryo in vivo (original magnification x 40,000). Notice coated vesicles and coated pit (arrows) containing electron dense material.

From: Pereda and Croxatto, 1992. Reproduced with permission of the Annals, Academy of Medicine, Singapore.


Keywords: cell contact area, coated pit, four-cell embryo, stage 2 embryo, vesicles


Source: The Virtual Human Embryo.