File:Early zygote.jpg

From Embryology

Early_zygote.jpg(500 × 441 pixels, file size: 23 KB, MIME type: image/jpeg)

Early Zygote

This is described as an early human zygote as the male and female pronuclei have not yet combined to form a single nucleus.

At this stage in vivo:

  • there would still be granulosa cells and spermatozoa attached to the zone pellucida.
  • the zygote floats freely within the uterine tube.
  • The cell is preparing for the first mitotic division.


About Carnegie Stages 1

Facts: Week 1, size 0.1 - 0.15 mm (100 - 150 microns)

Features: zygote, fertilized oocyte, pronuclei, polar bodies, zona pellucida


Links: Carnegie stage 1 | Image - Early zygote | Image - Early zygote labelled


Image Source: UNSW Embryology http://embryology.med.unsw.edu.au/wwwhuman/Stages/Stage1.htm

File history

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Date/TimeThumbnailDimensionsUserComment
current12:45, 10 March 2012Thumbnail for version as of 12:45, 10 March 2012500 × 441 (23 KB)Z8600021 (talk | contribs)
17:40, 27 July 2009Thumbnail for version as of 17:40, 27 July 2009216 × 191 (4 KB)MarkHill (talk | contribs)About Carnegie Stages 1 Facts: Week 1, size 0.1-0.15 mm Features: zygote, fertilized oocyte, pronuclei, polar bodies, zona pellucida Image Source: UNSW Embryology http://embryology.med.unsw.edu.au/wwwhuman/Stages/Stage1.htm

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