High power TEM of the same contact area of the stage 4 embryo in vitro shown in Figure 10. Measuring bar = 700 nm. See arrow in Figure 10. Notice apical junctional complexes (arrows) and desmosomes between the cultured endometrial epithelium (E) and a trophoblast cell (T).
From: Bentin-Ley et al., 2000. Reproduced with permission of the Society for Reproduction and Fertility.
Keywords: apical junctional complex, contact area(s), desmosomes, endometrial epithelium, stage 4 embryo, trophoblast cells
Source: The Virtual Human Embryo.