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Carnegie Stage   Figure

4-cell embryo

4-cell embryo

LM of a stage 2, 4-cell embryo in vitro. Nuclei are not apparent.

From: Veeck and Zaninovic´, 2003. Reproduced with permission of the publisher, Taylor & Francis Group.


Keywords: blastomere cell membrane, blastomere cytoplasm, four-cell embryo, nucleus, subzonal space, zona pellucida


Source: The Virtual Human Embryo.