Development Animation - Week 1: Difference between revisions

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<Flowplayer  width="640" height="186" autoplay="true">Week1_001.flv</Flowplayer>
<Flowplayer  width="640" height="186" autoplay="true">Week1_001.flv</Flowplayer>


This animation summarises early development in the first week following fertilization.
'''This animation summarises early development in the first week following fertilization.'''


The [[C#conceptus|conceptus]] proceeds through embryonic cell cycle rounds of mitosis still enclosed within the [[Z#zona pellucida|zona pellucida]]. Progressing from a [[Z#zygote|zygote]], to [[B#blastomere|blastomeres]], then to a [[M#morula|morula]] and finally to a [[B#blastocyst|blastocyst]].
* The [[C#conceptus|conceptus]] proceeds through embryonic cell cycle rounds of mitosis still enclosed within the [[Z#zona pellucida|zona pellucida]]. Progressing from a [[Z#zygote|zygote]], to [[B#blastomere|blastomeres]], then to a [[M#morula|morula]] and finally to a [[B#blastocyst|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.
* 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 after about day 5 onwards, the blastocyst "hatches" from the surrounding [[Z#zona pellucida|zona pellucida]].  
* Towards the end of the first week the blastocyst has reached the uterine body and after about day 5 onwards, the blastocyst "hatches" from the surrounding [[Z#zona pellucida|zona pellucida]].  


:'''Links:''' [[2010_Lecture_3|Lecture - Week 1 and 2]] | [[Week 1]] | [[Blastocyst]] | [[Movie - Blastomere Mitosis]] | [[Cell Division - Mitosis]] |  
:'''Links:''' [[2010_Lecture_3|Lecture - Week 1 and 2]] | [[Week 1]] | [[Blastocyst]] | [[Movie - Blastomere Mitosis]] | [[Cell Division - Mitosis]] |  

Revision as of 18:07, 7 August 2010

<Flowplayer width="640" height="186" autoplay="true">Week1_001.flv</Flowplayer>

This animation summarises early development in the first week following fertilization.

  • 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 after about day 5 onwards, the blastocyst "hatches" from the surrounding zona pellucida.
Links: Lecture - Week 1 and 2 | Week 1 | Blastocyst | Movie - Blastomere Mitosis | 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