Pflügers Archiv

, Volume 400, Issue 2, pp 211–213 | Cite as

Effect of plasma volume on thermoregulation in the dog

  • Michal Horowitz
  • Ethan R. Nadel
Heart, Circulation, Respiration and blood; Environmental and Exercise Physiology Letters and Notes

Abstract

Panting thresholds, plasma volume (PV) changes and cardiac filling pressure were studied during thermal dehydration in control, water deprived (WD) and hypovolemic (PEG) dogs. WD and PEG dogs showed a delayed panting threshold, apparently due to hypovolevoia. Initiation of heat stress however resulted in a transient plasma expansion in all dogs. Cardiac filling pressure did not change.

Key words

Heat stress Hypohydration Panting threshold Plasma volume Cardiac filling pressure 

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • Michal Horowitz
    • 1
  • Ethan R. Nadel
    • 1
  1. 1.John B. Pierce Foundation Laboratory and Department of Epidemiology and Public Health and PhysiologyYale University School of MedicineNew HavenUSA

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