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Carnegie Stage   Figure

Embryo attached to an endometrial cell culture

Embryo attached to an endometrial cell culture

High power SEM of a stage 4 embryo in vitro that is attached to an endometrial cell culture. Measuring bar = 60 µm. Several cells contact the endometrial surface (arrows) and possibly illustrate early penetration. The asterisk indicates a naked area without microvilli. The trophoblast cells exhibit many microvilli.

From: Bentin-Ley et al., 1999. Reproduced with permission of the publisher, Oxford University Press.


Keywords: endometrial cells, stage 4 embryo, trophoblast cells


Source: The Virtual Human Embryo.