Embryo 7700- Stage 5c | Fig. 14. O'Rahilly and Müller, 1987. |
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The bilaminar embryonic disc. The amnion overlying the disc does not seem to be complete. The epiblast is a pseudostratified columnar epithelium. The surrounding cytotrophoblast is evident, and lacunae can be seen in the syncytiotrophoblast. Cytotrophoblastic clumps may be regarded as an indication of the future chorionic villi. | ||||
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