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Carnegie Stage   Figure

Dense granular material inside nucleolus of a 4-cell embryo

Dense granular material inside nucleolus of a 4-cell embryo

Very high power TEM of part of a blastomere of a stage 2, 4-cell embryo in vivo (original magnification x90,000). Notice dense granular material (white arrows) inside the nucleolus (Nl).

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


Keywords: blastomere, four-cell embryo, nucleolus, stage 2 embryo


Source: The Virtual Human Embryo.