Influence of light and darkness on the hypothalamo-hypophysial system ofRana esculenta and the involvement of the pineal complex

@article{Vullings1973InfluenceOL,
  title={Influence of light and darkness on the hypothalamo-hypophysial system ofRana esculenta and the involvement of the pineal complex},
  author={Henk G. B. Vullings},
  journal={Zeitschrift f{\"u}r Zellforschung und Mikroskopische Anatomie},
  year={1973},
  volume={146},
  pages={491-500}
}
InRana esculenta the activity of the hypothalamo-hypophysial system has been investigated in intact and blinded animals, after removal of the frontal organ and after elimination of the whole pineal complex. The results on intact and blinded animals are practically the same as those found earlier inRana temporaria. Light increases the activity of the preoptic nucleus, blinding changes the difference between light- and darkness-treated intact animals. Compared with the intact animals the other… CONTINUE READING
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