Development Animation - Week 1

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Embryology - 29 Mar 2024    Facebook link Pinterest link Twitter link  Expand to Translate  
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File:Week1_001_icon.jpg</wikiflv>

Animation summarising early development in the first week following fertilization

  • The conceptus proceeds through embryonic cell cycle rounds of mitosis still enclosed within the zona pellucida. Progressing from a zygote, to blastomeres, then to a morula and finally to a blastocyst.
  • The uterine tube epithelium consists of ciliated cells that are moving the secreted fluid towards the uterine body. The conceptus is floating "boat-like" within this fluid and moved in the same direction.
  • Towards the end of the first week the blastocyst has reached the uterine body and from about day 5 onwards, the blastocyst "hatches" from the surrounding zona pellucida.
  • The conceptus can now receive nutrition directly and can commence the process of implantation in week 2.
Week 1 Links: MP4 version | Quicktime version | Week 1 Overview Movie | Lecture - Week 1 and 2 Development | Week 1 | Blastocyst | Human Blastocyst Mitosis | Blastomere Mitosis Movie | Cell Division - Mitosis | Carnegie stage 3


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, March 29) Embryology Development Animation - Week 1. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Development_Animation_-_Week_1

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