The homeothermal organisms function at a constant body temperature. Normal body temperature is 36.5°–37.5°C. The direction of heat flow is from the deeper tissues outward. The medium of heat transfer is the blood. At low external temperatures the temperature of the forearms and lower legs falls below 30°C. At high external temperatures the proximal parts of the extremities are about as warm as the torso. The body temperature can be recorded in the axilla, but more accurately in the mouth or rectum.
KeywordsHeat Loss Heat Production Retrograde Amnesia Normal Body Temperature Cutaneous Blood Flow
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