Quicktime Movie - Blastocyst Development

From Embryology
width=500px|height=450px|controller=true|autoplay=false</qt> Movie shows in vitro development of a human morula to blastocyst between day 3 and day 6 post-fertilization.

00:00 day 3 - Initially a solid mass of cells morula stage enclosed by the zona pellucida.

00:18 day 4 - blastocoel formation

00:22 - inner cell mass (embryoblast)

00:29 - maximal expansion of blastocyst in ZP

00:31 - contraction

00:32 - re-expansion

00:37 day 5 - contraction

00:38 - re-expansion

00:39 - contraction (collapse)

00:40 - re-expansion (blastocoel enlargement)

00:41 - commence blastocyst hatching (1 o'clock position)

00:44 day 6 - complete hatching, blastocyst expansion (inner cell mass 2 o'clock position)

00:47 - trophoblast layer thickens

00:53 - movie finishes


Links: Flash version | Quicktime movie | Quicktime - Blastocyst Contractions | Flash - Blastocyst Contractions | Quicktime - Blastocyst Hatching | Flash - Blastocyst Hatching | Blastocyst | Quicktime Movies

Human blastocyst day 1-6.jpg

Reference

<pubmed>20890283</pubmed>| Nat Biotechnol.


Reprinted by permission from Macmillan Publishers Ltd: Nat Biotechnol. (Non-invasive imaging of human embryos before embryonic genome activation predicts development to the blastocyst stage. Wong CC, Loewke KE, Bossert NL, Behr B, De Jonge CJ, Baer TM, Pera RA. Nat Biotechnol. 2010 Oct 3. [Epub ahead of print]

PMID 20890283), copyright (2010)

Template:Quicktime