[Heat content of the body as a basic parameter of thermoregulation]

With the aid of thermometry and calorimetry, the role of the organism's heat degree for the vasomotor response of the ear skin was studied in the rabbit. The calorimetric temperature was constant (19-21 degrees C) throughout the experiment. The heat threshold varied from 86 cal/kg to 320 cal/kg, depending on the different initial heat degrees in the animal. The increase in the organism's heat degree is concluded to be the main mechanism for initiation of the heat loss responses.