Evolutionary Trends in Reptilian Hypothalamus

  • P. D. Prasada Rao
  • N. K. Subhedar
  • A. Oksche


The hypothalami of amniote vertebrates have been shown to contain cluster-like subunits of parvocellular and magnocellular nuclei. Since mammals and birds have descended from reptiles, the reptilian hypothalamus offers a key for tracing the evolutionary development. Therefore, the patterns of hypothalamic neuronal organization in a lizard (Calotes versicolor), cobra (Naja naja) and crocodile (Gavialis gangeticus) were studied.


Vasoactive Intestinal Polypeptide Zebra Finch Median Eminence Pekin Duck Mediobasal Hypothalamus 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • P. D. Prasada Rao
    • 1
  • N. K. Subhedar
    • 2
  • A. Oksche
    • 3
  1. 1.Department of ZoologyNagpur UniversityNagpurIndia
  2. 2.Department of PharmacyNagpur UniversityNagpurIndia
  3. 3.Department of AnatomyJustus Liebig UniversityGiessenGermany

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