Question 1

Sweating rate increases directly with increases in ambient temperature.

Accepted Answer

A) True 
 B)False  True

Question 2

Core temperature rises quickly when heat gain exceeds heat loss during vigorous physical activity in a warm environment.

Accepted Answer

A) True 
 B)False  True

Question 3

Adequate hydration provides the most effective defense against heat stress.

Accepted Answer

A) True 
 B)False  True

Question 4

Contains the central coordinating center for temperature regulation.

Accepted Answer

A)  Brainstem 
B)  Medulla oblongata 
C)  Pons 
D)  Hypothalamus 
A)  Brainstem 
B)  Medulla oblongata 
C)  Pons 
D)  Hypothalamus

Question 5

Excess body fat decreases metabolic cost of weight-bearing activities and increases effective heat exchange.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following minerals has the greatest need for replenishment after heavy sweating?

Accepted Answer

A)  Potassium 
B)  Sodium 
C)  Magnesium 
D)  Calcium 
A)  Potassium 
B)  Sodium 
C)  Magnesium 
D)  Calcium

Question 7

The wet-bulb globe temperature index make use of __________ to evaluate environmental heat challenges.

Accepted Answer

A)  cold weather comparisons 
B)  altitude 
C)  relative humidity 
D)  water evaporation 
A)  cold weather comparisons 
B)  altitude 
C)  relative humidity 
D)  water evaporation

Question 8

Cold stress __________ urine production, which adds to total body fluid loss.

Accepted Answer

A)  increases 
B)  dramatically decreases 
C)  eliminates 
D)  slightly decreases 
A)  increases 
B)  dramatically decreases 
C)  eliminates 
D)  slightly decreases

Question 9

Inadequate water replenishment not only impairs physical activity capacity but also creates life-threatening disturbances in fluid balance and core temperature.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following statements regarding relative humidity and heat loss is true?

Accepted Answer

A)  Continually drying the skin with a towel before sweat evaporates enhances evaporative cooling. 
B)  One can tolerate relatively high environmental temperatures as long as humidity remains low. 
C)  Sweat cools the skin more effectively in high temperatures with high humidity. 
D)  With high humidity, ambient air's vapor pressure approaches that of moist skin, which enhances evaporative heat loss. 
A)  Continually drying the skin with a towel before sweat evaporates enhances evaporative cooling. 
B)  One can tolerate relatively high environmental temperatures as long as humidity remains low. 
C)  Sweat cools the skin more effectively in high temperatures with high humidity. 
D)  With high humidity, ambient air's vapor pressure approaches that of moist skin, which enhances evaporative heat loss.

Question 11

By far, the relative temperature exerts the greatest impact on the effectiveness of evaporative heat loss.

Accepted Answer

A) True 
 B)False

Question 12

Any degree of dehydration can impair the capacity of circulatory and temperature-regulating mechanisms to adjust to physical activity demands.

Accepted Answer

A) True 
 B)False

Question 13

Evaporation of sweat provides the major physiologic defense against overheating.

Accepted Answer

A) True 
 B)False

Question 14

Heat cramps the most common heat illness among physically active people and usually develops in dehydrated, untrained, and unacclimatized people.

Accepted Answer

A) True 
 B)False

Question 15

__________ fabrics worn close to the skin provide optimal transfer of heat and moisture from the skin to the environment.

Accepted Answer

A)  Nylon 
B)  Cotton 
C)  Polyester 
D)  Moisture-wicking 
A)  Nylon 
B)  Cotton 
C)  Polyester 
D)  Moisture-wicking

Question 16

Whole-body cold or ice water immersion is not an effective treatment for a collapsed hyperthermic individual.

Accepted Answer

A) True 
 B)False

Question 17

An important avenue for heat loss during physical activity-induced hyperthermia.

Accepted Answer

A)  Head 
B)  Neck 
C)  Hands 
D)  Feet 
A)  Head 
B)  Neck 
C)  Hands 
D)  Feet

Question 18

Body fluid loss coincides with which of the following?

Accepted Answer

A)  Increased stroke volume 
B)  Decreased plasma volume 
C)  Decreased heart rate 
D)  All of the above 
A)  Increased stroke volume 
B)  Decreased plasma volume 
C)  Decreased heart rate 
D)  All of the above

Question 19

Pre-exercise hyperhydration __________ the need to continually replace fluid during physical activity.

Accepted Answer

A)  does not replace 
B)  eliminates 
C)  dramatically reduces 
D)  increases 
A)  does not replace 
B)  eliminates 
C)  dramatically reduces 
D)  increases

Question 20

Men possess more heat-activated sweat glands per area of skin area than women.

Accepted Answer

A) True 
 B)False

Sweating rate increases directly with increases in ambient temperature.

Core temperature rises quickly when heat gain exceeds heat loss during vigorous physical activity in a warm environment.

Adequate hydration provides the most effective defense against heat stress.

Contains the central coordinating center for temperature regulation.

Excess body fat decreases metabolic cost of weight-bearing activities and increases effective heat exchange.

Which of the following minerals has the greatest need for replenishment after heavy sweating?

The wet-bulb globe temperature index make use of __________ to evaluate environmental heat challenges.

Cold stress __________ urine production, which adds to total body fluid loss.

Inadequate water replenishment not only impairs physical activity capacity but also creates life-threatening disturbances in fluid balance and core temperature.

Which of the following statements regarding relative humidity and heat loss is true?

By far, the relative temperature exerts the greatest impact on the effectiveness of evaporative heat loss.

Any degree of dehydration can impair the capacity of circulatory and temperature-regulating mechanisms to adjust to physical activity demands.

Evaporation of sweat provides the major physiologic defense against overheating.

Heat cramps the most common heat illness among physically active people and usually develops in dehydrated, untrained, and unacclimatized people.

__________ fabrics worn close to the skin provide optimal transfer of heat and moisture from the skin to the environment.

Whole-body cold or ice water immersion is not an effective treatment for a collapsed hyperthermic individual.

An important avenue for heat loss during physical activity-induced hyperthermia.

Body fluid loss coincides with which of the following?

Pre-exercise hyperhydration __________ the need to continually replace fluid during physical activity.

Men possess more heat-activated sweat glands per area of skin area than women.

The Macronutrients

The Micronutrients and Water

Nutrient Digestion and Absorption

Nutrient Role in Bioenergetics

Macronutrient Metabolism

Measurement of Energy in Food

Making Informed and Healthful Nutritional

Nutritional Considerations for Intense

Making Wise Choices in the Nutrition

Pharmacologic and Chemical Ergogenic

Nutritional Ergogenic Aids Evaluated

Body Composition Assessment

Energy Balance, Physical Activity

Disordered Eating

Filters

Exam 10: Physical Activity- Thermoregulation

Sweating rate increases directly with increases in ambient temperature.

Core temperature rises quickly when heat gain exceeds heat loss during vigorous physical activity in a warm environment.

Adequate hydration provides the most effective defense against heat stress.

Contains the central coordinating center for temperature regulation.

Excess body fat decreases metabolic cost of weight-bearing activities and increases effective heat exchange.

Which of the following minerals has the greatest need for replenishment after heavy sweating?

The wet-bulb globe temperature index make use of __________ to evaluate environmental heat challenges.

Cold stress __________ urine production, which adds to total body fluid loss.

Inadequate water replenishment not only impairs physical activity capacity but also creates life-threatening disturbances in fluid balance and core temperature.

Which of the following statements regarding relative humidity and heat loss is true?

By far, the relative temperature exerts the greatest impact on the effectiveness of evaporative heat loss.

Any degree of dehydration can impair the capacity of circulatory and temperature-regulating mechanisms to adjust to physical activity demands.

Evaporation of sweat provides the major physiologic defense against overheating.

Heat cramps the most common heat illness among physically active people and usually develops in dehydrated, untrained, and unacclimatized people.

__________ fabrics worn close to the skin provide optimal transfer of heat and moisture from the skin to the environment.

Whole-body cold or ice water immersion is not an effective treatment for a collapsed hyperthermic individual.

An important avenue for heat loss during physical activity-induced hyperthermia.

Body fluid loss coincides with which of the following?

Pre-exercise hyperhydration __________ the need to continually replace fluid during physical activity.

Men possess more heat-activated sweat glands per area of skin area than women.

The Macronutrients

The Micronutrients and Water

Nutrient Digestion and Absorption

Nutrient Role in Bioenergetics

Macronutrient Metabolism

Measurement of Energy in Food

Making Informed and Healthful Nutritional

Nutritional Considerations for Intense

Making Wise Choices in the Nutrition

Pharmacologic and Chemical Ergogenic

Nutritional Ergogenic Aids Evaluated

Body Composition Assessment

Energy Balance, Physical Activity

Disordered Eating

Filters