Das Verhalten der Hautdurchblutung bei Hypothalamuskühlung an der wachen Katze

  • F. J. Krüger
  • H. W. Kundt
  • H. Hensel
  • K. Brück


1. In the nonanaesthetized cat the hypothalamus was cooled by means of chronically implanted thermodes of 1 mm in diameter. The ear blood flow was continuously recorded by heated thermocouples.

2. At indifferent room temperatures (23 to 25° C), hypothalamic cooling caused a marked vasoconstriction, the amount of which was dependent on the degree of cooling.

3. Prolonged cooling for 90 min led to a vasoconstriction of the same duration.

4. Hypothalamic cooling was followed by a rise in rectal temperature and, in some cases, by shivering.

5. At high room temperatures (33 to 37° C), causing a vasodilatation in the ear, the constrictor effect of cooling the hypothalamus was inhibited.


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Copyright information

© Springer-Verlag 1959

Authors and Affiliations

  • F. J. Krüger
    • 1
  • H. W. Kundt
    • 1
  • H. Hensel
    • 1
  • K. Brück
    • 1
  1. 1.Aus dem Physiologischen Institut der Universität Marburg/LahnGermany

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