Osmotic and ionic regulation in reptiles

William H Dantzler, S. Donald Bradshaw

Research output: Chapter in Book/Report/Conference proceedingChapter

9 Citations (Scopus)

Abstract

Claude Bernard was the first to advance the concept of a protected milieu intérieur composed of the physical elements within the tissues which are maintained at levels and concentrations different from those found in the external environment by the operation of homeostatic mechanisms. Bernard did not use the term homeostasis; Walter Cannon coined it in 1929. The notion of homeostatic mechanisms regulating the functional behavior of machines is now commonplace and has been a powerful organizing paradigm in biology. It is important to note, however, one important difference between machines and living organisms. Homeostasis in engineered artifacts results from inbuilt design constraints, whereas that in animals is more often the result of purposive behavior, which may be modulated by specific chemicals secreted internally in the form of hormones. Evidence of homeostasis in animals may thus be sought at two levels: in the temporal stability of the chemical structure of the tissues themselves and by the identification of hierarchical control systems impacting on the composition of the tissues through the maintenance of set points.

Original languageEnglish (US)
Title of host publicationOsmotic and Ionic Regulation
Subtitle of host publicationCells and Animals
PublisherCRC Press
Pages443-503
Number of pages61
ISBN (Electronic)9780849380525
ISBN (Print)9780849380303
DOIs
StatePublished - Jan 1 2008

Fingerprint

Reptiles
reptiles
homeostasis
Homeostasis
Tissue
Animals
chemical structure
Artifacts
Identification (control systems)
animals
Maintenance
hormones
Hormones
Control systems
Biological Sciences
organisms
Chemical analysis
tissues

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)
  • Pharmacology, Toxicology and Pharmaceutics(all)

Cite this

Dantzler, W. H., & Donald Bradshaw, S. (2008). Osmotic and ionic regulation in reptiles. In Osmotic and Ionic Regulation: Cells and Animals (pp. 443-503). CRC Press. https://doi.org/10.1201/9780849380525

Osmotic and ionic regulation in reptiles. / Dantzler, William H; Donald Bradshaw, S.

Osmotic and Ionic Regulation: Cells and Animals. CRC Press, 2008. p. 443-503.

Research output: Chapter in Book/Report/Conference proceedingChapter

Dantzler, WH & Donald Bradshaw, S 2008, Osmotic and ionic regulation in reptiles. in Osmotic and Ionic Regulation: Cells and Animals. CRC Press, pp. 443-503. https://doi.org/10.1201/9780849380525
Dantzler WH, Donald Bradshaw S. Osmotic and ionic regulation in reptiles. In Osmotic and Ionic Regulation: Cells and Animals. CRC Press. 2008. p. 443-503 https://doi.org/10.1201/9780849380525
Dantzler, William H ; Donald Bradshaw, S. / Osmotic and ionic regulation in reptiles. Osmotic and Ionic Regulation: Cells and Animals. CRC Press, 2008. pp. 443-503
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