Fig. 6-9. O'Rahilly
and Muller, Developmental Stages in Human Embryos, 1987.
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| Embryo 7801 - Stage 6 | Fig. 6-9. O'Rahilly
and Muller, Developmental Stages in Human Embryos, 1987. |
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| The amniotic cavity, embryonic disc, and umbilical vesicle of No. 7801. The upturned margins of the epiblast change abruptly to the squamous cells of the amniotic ectoderm. The gut endoderm has a foamy appearance, whereas the cells lining the umbilical vesicle are squamous. The umbilical vesicle appears to be acquiring an external coat. Section 12-1-1. | |
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