File:Human-oocyte to blastocyst.jpg

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Human Oocyte to Blastocyst

Morphology of human oocytes and embryos.

GV - germinal vesicle oocyte (GV)
MI - metaphase I oocyte
MII - metaphase II oocyte
D2 - (day 2) 4-cell embryo
D3 - (day 3) 8-cell embryo
D5 - (day 5) blastocyst

MII oocytes had been matured in vitro after donation at GV stage. D2, D3, D5 embryos were all matured in vitro.

Germinal vesicle oocyte
Metaphase I oocyte
Metaphase II oocyte
Day 2
Day 3 - Morula
Day 5 - Blastocyst
Day 5 (label)
Day 5 (colour label)
Human oocyte to blastocyst

Reference

<pubmed>19924284</pubmed>| PMC2773928 | PLoS One

PLoS One. 2009; 4(11): e7844. Published online 2009 November 16. doi: 10.1371/journal.pone.0007844.

Copyright Zhang et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:09, 5 April 2010		600 × 402 (49 KB)	S8600021 (talk \| contribs)	Morphology of human oocytes and embryos. GV - germinal vesicle oocyte (GV) MI - metaphase I oocyte MII - metaphase II oocyte D2 - 4-cell embryo D3 - 8-cell embryo D5 - blastocyst MII oocytes had been matured in vitro after donation at GV stage. D2

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