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SPE 3541: Exercise Thermoregulation Quiz

10 Questions

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SPE 3541: Exercise Thermoregulation Quiz

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Questions and Answers

What is the definition of hyperthermia?

An increase in body temperature by 5°C or more (correct)

A decrease in body temperature by 5°C or more

A decrease in body temperature by 3°C or more

An increase in body temperature by 3°C or more

Which of the following contributes to heat loss for regulating core temperature?

Evaporation only (correct)

Conduction only

Radiation only

Convection only

What are the two ways in which heat-regulating mechanisms become activated?

Neural stimulation and thermal receptors in the skin

Temperature changes and hormonal changes

Hormonal changes and neural stimulation

Temperature changes and thermal receptors in the skin (correct)

Which part of the body is described as the central coordinating center for temperature regulation?

Hypothalamus Signup and view all the answers

How does the body lose radiant heat energy?

Through air to solid cooler objects around us Signup and view all the answers

Which mechanism transfers heat directly through a liquid, solid, or gas from one molecule to another?

Conduction Signup and view all the answers

What is the major physiologic defense against overheating?

Evaporation Signup and view all the answers

What does heavy 'sweatshirts' and rubber or plastic garments produce close to the skin?

High relative humidity Signup and view all the answers

What impairs the capacity of circulatory and temperature-regulating mechanisms to adjust to exercise demands?

Dehydration of as little as 5% body mass Signup and view all the answers

What reduces the effectiveness of heat loss by conduction, convection, and radiation?

Increased ambient temperature Signup and view all the answers