File:Human zygote two pronuclei 22.jpg

From Embryology
Human_zygote_two_pronuclei_22.jpg(519 × 457 pixels, file size: 38 KB, MIME type: image/jpeg)

Human Early Zygote

  • Early zygote observed after 18 to 20 hours after insemination.
  • Zygote showing the two unfused pronuclei (male and female) containing nucleolar precursor bodies.
  • Polar bodies are seen (10 o'clock position) at the periphery separating the zygote plasma membrane from the surrounding zone pellucida.
  • There is also a unlabeled version of this image.


Zygote Image Links: Image - Early zygote | Image - Early zygote labelled | Image - zygote 1 | Image - zygote 2 | Image - zygote 3 | Image - zygote 2 labeled | Fertilization | Zygote | Carnegie stage 1 | Category:Zygote

Reference

Nicoli A, Capodanno F, Moscato L, Rondini I, Villani MT, Tuzio A & La Sala GB. (2010). Analysis of pronuclear zygote configurations in 459 clinical pregnancies obtained with assisted reproductive technique procedures. Reprod. Biol. Endocrinol. , 8, 77. PMID: 20579351 DOI.

Copyright

© 2010 Nicoli et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Original File name: Figure 2. 1477-7827-8-77-2-l.jpg Original magnification ×400, for the paper publication not the online image.

The original figure (C) was extracted from the full panel image and modified using Photoshop with the addition of labels:

(C) 2PN centralized and juxtaposed, NPBs non polarized with dispersed or not completely aligned NPBs in the 2PN, longitudinal PB alignment.


(A) 2PN centralized and juxtaposed, NPBs aligned on the side of the 2PN, longitudinal PB alignment. (B) 2PN centralized and juxtaposed, NPBs dispersed in the 2PN, perpendicular PB alignment. (C) 2PN centralized and juxtaposed, NPBs non polarized with dispersed or not completely aligned NPBs in the 2PN, longitudinal PB alignment. (D) 2PN centralized and juxtaposed, NPBs aligned on the side of the 2PN, neither longitudinal nor perpendicular PB alignment. Black narrows indicate the PBs. (A) and (B) were examples of zygotes included in Pattern 1 group, while (C) and (D) were examples of zygotes included in Pattern 2 group.


Cite this page: Hill, M.A. (2019, December 11) Embryology Human zygote two pronuclei 22.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Human_zygote_two_pronuclei_22.jpg

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

File history

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Date/TimeThumbnailDimensionsUserComment
current14:32, 20 July 2010Thumbnail for version as of 14:32, 20 July 2010519 × 457 (38 KB)S8600021 (talk | contribs)
14:31, 20 July 2010Thumbnail for version as of 14:31, 20 July 2010519 × 457 (38 KB)S8600021 (talk | contribs)Zygote showing different distribution of nucleolar precursor bodies (NPB) in the two pronuclei (2PN) and different PB aligment (Original magnification ×400, for the paper publication not the online image). Zygote observed after 18-20 hours after insemina
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