Difference between revisions of "Respiratory System Development"

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===Search PubMed===
===Search PubMed===
Search April 2010 "Respiratory Development" '''3,025''' reference articles of which '''491''' were reviews.
Search April 2010 "Respiratory Development" - All (28939) Review (5876) Free Full Text (7203)
'''Search Pubmed:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=respiratory+development Respiratory Development]
'''Search Pubmed:''' [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=search&term=respiratory+development Respiratory Development]

Revision as of 09:53, 14 April 2010


The respiratory system does not carry out its physiological function (of gas exchange) until after birth. The respiratory tract, diaphragm and lungs do form early in embryonic development. The respiratory tract is divided anatomically into 2 main parts: 1. upper respiratory tract, consisting of the nose, nasal cavity and the pharynx; 2. lower respiratory tract consisting of the larynx, trachea, bronchi and the lungs.

In the head/neck region, the pharynx forms a major arched cavity within the phrayngeal arches. The lungs go through 4 distinct histological phases of development and in late fetal development respiratory motions and amniotic fliud are thought to have a role in lung maturation.

Development of this system is not completed until the last weeks of Fetal development, just before birth. Therefore premature babies have difficulties associated with insufficient surfactant (end month 6 alveolar cells type 2 appear and begin to secrete surfactant).

--Mark Hill 09:25, 14 April 2010 (EST) Page Template only - content from original UNSW Embryology site currently being edited and updated.

Links: Category:Respiratory | original Respiratory Development page

Some Recent Findings



  • Describe the development of the respiratory system from the endodermal and mesodermal components.
  • Describe the main steps in the development of the lungs.
  • Describe the development of the diaphragm and thoracic cavities.
  • List the respiratory changes before and after birth.
  • Describe the developmental aberrations responsible for the following malformations: tracheo - oesophageal fistula (T.O.F); oesphageal atresia; diaphragmatic hernia; lobar emphysema.

Computer Activities

Development Overview




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Cite this page: Hill, M.A. (2020, July 9) Embryology Respiratory System Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Respiratory_System_Development

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