File:Human oocyte-metaphase II.jpg

From Embryology

Human_oocyte-metaphase_II.jpg(400 × 409 pixels, file size: 12 KB, MIME type: image/jpeg)

Human Oocyte Morphology

This is a meiosis II metaphase II oocyte, note the absence of an obvious nucleus and the presence of a polar body at the cell periphery. The polar body has pushed the oocyte plasma membrane away from direct contact with the zona pellucida.

Some animal studies suggest that the position of this oocyte plasma membrane/zona pellucida space can determine the eventual site of fertilization.

MII - metaphase II oocyte

Image Links: Human oocyte to blastocyst | Germinal vesicle oocyte (GV) | Metaphase I oocyte | Metaphase II oocyte | Day 2 | Day 3 | Day 5 | Day 5 (label) | Day 5 (colour label)

Links: Oocyte | Morula | Blastocyst | Carnegie stage 1 | Carnegie stage 2 | Carnegie stage 3 | Cell Division - Meiosis | Cell Division - Mitosis


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

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


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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current15:46, 17 April 2012Thumbnail for version as of 15:46, 17 April 2012400 × 409 (12 KB)Z8600021 (talk | contribs)
12:26, 5 April 2010Thumbnail for version as of 12:26, 5 April 2010320 × 330 (21 KB)S8600021 (talk | contribs)Morphology of human oocyte. MII - metaphase II oocyte Note - Original image has been modified to remove array data, colour and other embryo images. See also File:Human-oocyte_to_blastocyst.jpg Pone.0007844.g004.jpg