Embryo 7700 - Stage 5c | Fig. 26. Hertig and Rock, 1941. |
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Part of the abembryonic trophoblast, to show its undifferentiated character and the delamination in situ of primitive extraembryonic mesoblast from the trophoblast. The overlying endometrium is thin and atrophic on the right and necrotic on the left. | ||||
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