Understanding the Development of the Respiratory and Cardiovascular Systems Using Avian Models

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Keynote address for the 2007 University Scholars Day delivered by Dr. Edward Dzialowski, This keynote speaker discusses the development of respiratory and cardiovascular systems using avian models.

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16 p.

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Dzialowski, Edward M. (Edward Michael) March 29, 2007.

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  • Main Title: Understanding the Development of the Respiratory and Cardiovascular Systems Using Avian Models
  • Series Title: University Scholars Day

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Description

Keynote address for the 2007 University Scholars Day delivered by Dr. Edward Dzialowski, This keynote speaker discusses the development of respiratory and cardiovascular systems using avian models.

Physical Description

16 p.

Notes

Abstract: The avian embryo has a long history of use as a model system for the study of morphological and physiological development. Properties of avian eggs that make them good developmental models include the large range of functional maturity at hatching and the ability to easily manipulate the environment in which the egg is incubating. The chicken embryo develops over a 20 day incubation period. During the first 19 days of incubation, the embryo relies on the chorioallantoic membrane for gas exchange. The embryo begins the hatching process on day 19 which involves internal pipping, external pipping, and finally hatching. The author's lab uses the chicken embryo to study the development of the cardiovascular system, specifically the ductus arteriosi. The ductus arteriosi are a pair of blood vessels in the avian embryo which allow blood to bypass the non-ventilated lungs. Upon initiation of lung ventilation these blood vessels must close. Closure appears to be stimulated by increased oxygen in the blood due to increased lung ventilation during external pipping. The properties of the avian model system will allow the author to explore questions regarding the effect of environmental stress during development on the ductus arteriosus that cannot be addressed with typical mammalian models.

Fourth Annual University Scholars Day, 2007, Denton, Texas, United States.

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  • The Eagle Feather, 2007, Denton: University of North Texas. Honors College

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  • Publication Title: The Eagle Feather
  • Volume: 4
  • Issue: 2007

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UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

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  • March 29, 2007

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  • Aug. 7, 2012, 1:52 p.m.

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  • March 20, 2017, 12:20 p.m.

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Dzialowski, Edward M. (Edward Michael). Understanding the Development of the Respiratory and Cardiovascular Systems Using Avian Models, text, March 29, 2007; [Denton, Texas]. (digital.library.unt.edu/ark:/67531/metadc96825/: accessed June 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Honors College.