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A primordial junctional complex near the subzonal space in a 7-cell embryo

High power TEM of a section of a stage 2, 7-cell embryo in vivo (original magnification x10,000). A primordial junctional complex (arrows) joins two cells near the subzonal space (*).

From: Pereda and Croxatto, 1992. Reproduced with permission of the Annals, Academy of Medicine, Singapore.

Keywords: primordial junctional complex, seven-cell embryo, subzonal space

Source: The Virtual Human Embryo.