Fig. 34. Light microscopic view of a stage 3 embryo in vitro through the inner cell mass (ICM) of an expanded blastocyst 170 hours post-insemination. The collapse of the blastocystic cavity (BC) and indention of the mural trophoblast (T) occurred during processing.
(From: Lopata, Kohlman, and Kellow, 1982. Reproduced with permission of the publisher, John Wiley & Sons.)
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