Question 1

Just about any degree of hydration helps the capacity of circulatory and temperature-regulating mechanisms to adjust to physical activity demands.

Accepted Answer

A) True 
 B)False

Question 2

Skin cooling occurs only when sweat evaporates.

Accepted Answer

A) True 
 B)False

Question 3

The most serious and complex heat-stress malady and requires immediate medical attention.

Accepted Answer

A)  Heat intolerance 
B)  Exertional heat stroke 
C)  Heat cramps 
D)  Heat exhaustion 
A)  Heat intolerance 
B)  Exertional heat stroke 
C)  Heat cramps 
D)  Heat exhaustion

Question 4

Heat loss occurs by these two physical mechanisms.

Accepted Answer

A)  Radiation and convection 
B)  Radiation and conduction 
C)  Radiation, conduction, convection, and evaporation 
D)  Conduction and convection 
A)  Radiation and convection 
B)  Radiation and conduction 
C)  Radiation, conduction, convection, and evaporation 
D)  Conduction and convection

Question 5

Regarding core temperature during physical activity?

Accepted Answer

A)  Heat generated by active muscles can decrease shell temperature to hypothermic levels. 
B)  A significant rise in shell temperature reflects a favorable internal adjustment. 
C)  A well-regulated rise in core temperature occurs even during physical activity in the cold. 
D)  An increased core temperature with physical activity reflects a failure of heat-dissipating mechanisms. 
A)  Heat generated by active muscles can decrease shell temperature to hypothermic levels. 
B)  A significant rise in shell temperature reflects a favorable internal adjustment. 
C)  A well-regulated rise in core temperature occurs even during physical activity in the cold. 
D)  An increased core temperature with physical activity reflects a failure of heat-dissipating mechanisms.

Question 6

Development of hypernatremia requires extreme sodium loss through prolonged sweating coupled with dilution of existing extracellular sodium.

Accepted Answer

A) True 
 B)False

Question 7

Heat exhaustion is the most serious and complex heat-stress malady and requires immediate medical attention.

Accepted Answer

A) True 
 B)False

Question 8

Football uniforms effectively seal off about __________ of the body's surface from the benefits of evaporative cooling.

Accepted Answer

A)  20% 
B)  35% 
C)  50% 
D)  65% 
A)  20% 
B)  35% 
C)  50% 
D)  65%

Question 9

The risk for dehydration decreases during vigorous cold-weather physical activity.

Accepted Answer

A) True 
 B)False

Question 10

The most common heat illness among physically active people.

Accepted Answer

A)  Heat exhaustion 
B)  Heat cramps 
C)  Heat flush 
D)  Heat stroke 
A)  Heat exhaustion 
B)  Heat cramps 
C)  Heat flush 
D)  Heat stroke

Question 11

Heat cramps most likely occur from an imbalance in hydration level and electrolyte concentrations.

Accepted Answer

A) True 
 B)False

Question 12

Children exposed to environmental heat stress should exercise at reduced intensity and receive more time to acclimatize than more mature competitors.

Accepted Answer

A) True 
 B)False

Question 13

Elevation in core body temperature causes __________.

Accepted Answer

A)  increased gastric emptying rate 
B)  reduced stomach and intestinal motility 
C)  increased efficiency of digestion 
D)  no change in efficiency of digestion 
A)  increased gastric emptying rate 
B)  reduced stomach and intestinal motility 
C)  increased efficiency of digestion 
D)  no change in efficiency of digestion

Question 14

Heat cramps, or involuntary muscle spasms, occur during or after intense physical activity, usually in the specific muscles exercised.

Accepted Answer

A) True 
 B)False

Question 15

Several hours of intense sweating can cause __________ fatigue, which ultimately impairs core temperature regulation.

Accepted Answer

A)  hormonal 
B)  heat generating 
C)  central nervous system 
D)  sweat gland 
A)  hormonal 
B)  heat generating 
C)  central nervous system 
D)  sweat gland

Question 16

The brain stem contains the central coordinating center for temperature regulation.

Accepted Answer

A) True 
 B)False

Question 17

Cells that play the most important role in initiating regulatory responses to cold environments?

Accepted Answer

A)  Hair follicle cells 
B)  Cutaneous heat receptors 
C)  Cutaneous cold receptors 
D)  Deep tissue nerve receptors 
A)  Hair follicle cells 
B)  Cutaneous heat receptors 
C)  Cutaneous cold receptors 
D)  Deep tissue nerve receptors

Question 18

Dehydration as little as __________ of total body mass impairs physical work capacity and physiologic function.

Accepted Answer

A)  2% 
B)  10% 
C)  15% 
D)  20% 
A)  2% 
B)  10% 
C)  15% 
D)  20%

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Excessive water intake under certain physical activity conditions can produce potentially serious medical complications from the syndrome known as hyper-dehydration.

Accepted Answer

A) True 
 B)False

Just about any degree of hydration helps the capacity of circulatory and temperature-regulating mechanisms to adjust to physical activity demands.

Skin cooling occurs only when sweat evaporates.

The most serious and complex heat-stress malady and requires immediate medical attention.

Heat loss occurs by these two physical mechanisms.

Regarding core temperature during physical activity?

Development of hypernatremia requires extreme sodium loss through prolonged sweating coupled with dilution of existing extracellular sodium.

Heat exhaustion is the most serious and complex heat-stress malady and requires immediate medical attention.

Football uniforms effectively seal off about __________ of the body's surface from the benefits of evaporative cooling.

The risk for dehydration decreases during vigorous cold-weather physical activity.

The most common heat illness among physically active people.

Heat cramps most likely occur from an imbalance in hydration level and electrolyte concentrations.

Children exposed to environmental heat stress should exercise at reduced intensity and receive more time to acclimatize than more mature competitors.

Elevation in core body temperature causes __________.

Heat cramps, or involuntary muscle spasms, occur during or after intense physical activity, usually in the specific muscles exercised.

Several hours of intense sweating can cause __________ fatigue, which ultimately impairs core temperature regulation.

The brain stem contains the central coordinating center for temperature regulation.

Cells that play the most important role in initiating regulatory responses to cold environments?

Dehydration as little as __________ of total body mass impairs physical work capacity and physiologic function.

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

Excessive water intake under certain physical activity conditions can produce potentially serious medical complications from the syndrome known as hyper-dehydration.

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

Just about any degree of hydration helps the capacity of circulatory and temperature-regulating mechanisms to adjust to physical activity demands.

Skin cooling occurs only when sweat evaporates.

The most serious and complex heat-stress malady and requires immediate medical attention.

Heat loss occurs by these two physical mechanisms.

Regarding core temperature during physical activity?

Development of hypernatremia requires extreme sodium loss through prolonged sweating coupled with dilution of existing extracellular sodium.

Heat exhaustion is the most serious and complex heat-stress malady and requires immediate medical attention.

Football uniforms effectively seal off about __________ of the body's surface from the benefits of evaporative cooling.

The risk for dehydration decreases during vigorous cold-weather physical activity.

The most common heat illness among physically active people.

Heat cramps most likely occur from an imbalance in hydration level and electrolyte concentrations.

Children exposed to environmental heat stress should exercise at reduced intensity and receive more time to acclimatize than more mature competitors.

Elevation in core body temperature causes __________.

Heat cramps, or involuntary muscle spasms, occur during or after intense physical activity, usually in the specific muscles exercised.

Several hours of intense sweating can cause __________ fatigue, which ultimately impairs core temperature regulation.

The brain stem contains the central coordinating center for temperature regulation.

Cells that play the most important role in initiating regulatory responses to cold environments?

Dehydration as little as __________ of total body mass impairs physical work capacity and physiologic function.

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

Excessive water intake under certain physical activity conditions can produce potentially serious medical complications from the syndrome known as hyper-dehydration.

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