Relationships Between the Subcommissural Organ and the Pineal Complex

  • A. Oksche
  • H.-W. Korf


The close spatial relationship between the pineal body and the subcommissural organ (SCO) has been noted by all investigators of the diencephalic roof. The interest in this aspect of circumventricular organs has been further emphasized by developmental studies. In comparative terms, the SCO is a very ancient and persistent structure of the vertebrate brain, in contrast to the pineal complex that displays striking evolutionary changes with respect to its sensory and secretory structures and functions. In spite of this remarkable comparative variability in the organization of the roof of the third ventricle, the spatial contact between both areas is always very intimate.


Rainbow Trout Pineal Organ Rana Temporaria Rana Esculenta Subcommissural Organ 
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© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • A. Oksche
  • H.-W. Korf

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