Quicktime Development Animation - Chorionic Cavity

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Embryology - 10 Apr 2021    Facebook link Pinterest link Twitter link  Expand to Translate  
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<qt>file=Chorion 001.mov‎|width=214px|height=240px|controller=true|autoplay=false</qt>
Animation shows the events following implantation and focuses on changes in the the spaces surrounding the embryonic disc, the extraembryonic coelom. The blastoceol cavity is converted into two separate spaces: the yolk sac and the chorionic cavity. The third space lies above the epiblast, the amniotic cavity.

blue - epiblast layer

yellow - hypoblast layer

red cells - extraembryonic mesoderm layer

green - trophoblast layer

red spaces - blood-filled spaces, maternal lacunae

white cells - (left) endometrial gland (right) endometrial epithelium

Quicktime version