Development Animation - Week 3

From Embryology
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Week3_folding icon.jpg</wikiflv> This animation shows embryonic disc folding beginning week 3 of development.

Embryonic disc (midline section) shown to the left and early placenta to the right.


  • blue - epiblast layer of amniotic cavity
  • yellow - endoderm layer of the yolk sac and gastrointestinal tract
  • red - outside embryo extraembryonic mesoderm and inside embryo mesoderm


Quicktime version





Source: UNSW Embryology Thanks to the late Prof William Larsen for allowing permission to use animations based on images from his textbook. (More? movie technical information)

Links: Movies Page | Category:Movies



Cite this page: Hill, M.A. (2024, April 26) Embryology Development Animation - Week 3. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Development_Animation_-_Week_3

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G