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Carnegie Stage   Figure

Surface view of implantation site

Surface view of implantation site

A surface view of the implantation site (photographed under fluid), showing the collapsed blastocyst attached to the endometrium. The opaque and rounded embryonic mass is within the chorionic cavity, the latter appearing as a dark ring within the larger opaque outline of the trophoblastic shell.

Fig. 1. Hertig and Rock, 1945.

Click on the picture to view the full-sized image.


Keywords: chorionic cavity, collapsed blastocyst, endometrium, implantation site, trophoblastic shell


Source: The Virtual Human Embryo.