Skip Navigation
Stage 1 / 1 day Stage 2 / 2-3 days Stage 3-1 / 4 days Stage 3-2 / 4-5 days Stage 4 / 6 days Stage 5a-1 / 7 days Stage 5a-2 / 8 days Stage 5b / 9 days Stage 5c / 12 days Stage 6 / 13-17 days Stage 7 / 16-19 days Stage 8 / 23 days Stage 9 / 25 days Stage 10 / 28 days Stage 11 / 29 days Stage 12 / 30 days Stage 13 / 32 days Stage 14 / 33 days Stage 15 / 36 days Stage 16 / 39 days Stage 17 / 41 days Stage 18 / 44 days Stage 19 / 45-47 days Stage 20 / 49 days Stage 21 / 49-52 days Stage 22 / 52-55 days Stage 23 / 56 days
Carnegie Stage   Figure
 <   >  search results: arteriovenous sinusoid Search   Fig. 5c-16 Fig. 5c-17 Fig. 5c-19 Fig. 5c-20

Part of the trophoblast

Part of the trophoblast

Part of the trophoblast from the lateral (equatorial) aspect of the embryo, to show the "brush border" lining the lacunar spaces of the syncytiotrophoblast. The small capillary on the right connects the lacunar spaces of the trophoblast with the nearby arteriovenous sinusoids.

Fig. 31. Hertig and Rock, 1941.


Keywords: arteriovenous sinusoid, brush border, embryo, lacunar spaces of syncytiotrophoblast, lacunar spaces of trophoblast, trophoblast


Source: The Virtual Human Embryo.