SEM of a stage 2, 10-cell embryo in vitro on post-insemination day 3. Zona pellucida was removed mechanically. Blastomeres are of unequal size and intercellular clefts are pronounced. Microvilli are dense.
From: Nikas et al., 1996. Reproduced with permission of the publisher, John Wiley & Sons.
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Keywords: blastomere, intercellular cleft, microvilli, stage 2 embryo, ten-cell embryo
Source: The Virtual Human Embryo.