Difference between revisions of "Carnegie stage 1"

From Embryology
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This image shows an early human zygote where the male and female pronuclei have not yet combined to form the single zygote nucleus.
 
This image shows an early human zygote where the male and female pronuclei have not yet combined to form the single zygote nucleus.
  
Two of the egg's polar bodies (right) are shown at the edge of the egg cytoplasm.
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Two of the egg's polar bodies (right, 3 o'clock position) are shown at the edge of the egg cytoplasm. These polar bodies contain the excess DNA from the meiotic divisions of the egg.
 
 
  
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The zona pellucida
  
 
==Additional Images==
 
==Additional Images==

Revision as of 08:04, 5 April 2010

Early zygote.jpg

Facts: Week 1, size 0.1-0.15 mm

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

This image shows an early human zygote where the male and female pronuclei have not yet combined to form the single zygote nucleus.

Two of the egg's polar bodies (right, 3 o'clock position) are shown at the edge of the egg cytoplasm. These polar bodies contain the excess DNA from the meiotic divisions of the egg.

The zona pellucida

Additional Images


Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline

Cite this page: Hill, M.A. (2020, July 14) Embryology Carnegie stage 1. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_1

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© Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G