Foundations Practical - Critical Periods: Difference between revisions

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:''These are developmental times (stages) sensitive to insult, be aware of these times, the causes and the potential effects.''
:''These are developmental times (stages) sensitive to insult, be aware of these times, the causes and the potential effects.''
We have now had a very quick trip through more than 9 months of development in nearly 2 hours. Before we finish it is worth thinking about times in development when things may go wrong.


Critical periods of development refer to times when genetic or materal effects can impact upon the developmental process. The timing of these effects will impact on different systems at different times.
Critical periods of development refer to times when genetic or materal effects can impact upon the developmental process. The timing of these effects will impact on different systems at different times.

Revision as of 10:23, 28 April 2010

Environment Effects

These are developmental times (stages) sensitive to insult, be aware of these times, the causes and the potential effects.

We have now had a very quick trip through more than 9 months of development in nearly 2 hours. Before we finish it is worth thinking about times in development when things may go wrong.

Critical periods of development refer to times when genetic or materal effects can impact upon the developmental process. The timing of these effects will impact on different systems at different times.

Human-critical periods.jpg

Systems with long periods of development are more susceptible to developmental abnormalities. Which systems take a long time to develop?

Australian Statistics

Australian abnormalities graph allsystem.png Trisomy21male.jpg

Fetal Origins Hypothesis

The Fetal period is also potentially sensitive to maternal effects that impact upon interuterine growth. Along these lines there is growing evidence that low birth weight, and therefore inhibited fetal growth, has postnatal effects on lifelong health outcomes.




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Foundations Practical: Introduction | Week 1 and 2 | Week 3 and 4 | Week 1 to 8 | Week 9 to 36 | Neonatal | Critical Periods | Additional Resources | Quiz


Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers


Cite this page: Hill, M.A. (2024, March 29) Embryology Foundations Practical - Critical Periods. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Foundations_Practical_-_Critical_Periods

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G