Questions and Answers
What is the definition of hyperthermia?
An increase in body temperature by 5°C or more
Which of the following contributes to heat loss for regulating core temperature?
Evaporation only
What are the two ways in which heat-regulating mechanisms become activated?
Temperature changes and thermal receptors in the skin
Which part of the body is described as the central coordinating center for temperature regulation?
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How does the body lose radiant heat energy?
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Which mechanism transfers heat directly through a liquid, solid, or gas from one molecule to another?
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What is the major physiologic defense against overheating?
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What does heavy 'sweatshirts' and rubber or plastic garments produce close to the skin?
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What impairs the capacity of circulatory and temperature-regulating mechanisms to adjust to exercise demands?
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What reduces the effectiveness of heat loss by conduction, convection, and radiation?
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