File:Human-critical periods of development.jpg
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Critical Periods of Human Development
|Light Orange = minor abnormality|
|The table below identifies approximate windows of time, "critical periods", that following exposure to teratogens can lead to developmental abnormalities (anomalies, congenital).
In general, the effects for each system are more severe (major anomalies) in the embryonic period during organogenesis in the first trimester.
Later teratogen exposure are less severe (minor anomalies) in the fetal period during continued growth and differentiation in the second and third trimester.
This figure is also available as a formatted table.
Cite this page: Hill, M.A. (2021, October 18) Embryology Human-critical periods of development.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Human-critical_periods_of_development.jpg
- © Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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|current||18:41, 28 September 2010||662 × 406 (53 KB)||S8600021|