Environmental Physiology Quizzes for Exercise Physiology Students

Question 1

Which of the following is **not** a physiological response to heat exposure?

Accepted Answer

Vasoconstriction

Answer

Increased sweating

Answer

Increased heart rate

Answer

Hyperthermia

Question 2

What is the primary mechanism by which the body loses heat in cold environments?

Accepted Answer

Radiation

Answer

Conduction

Answer

Convection

Answer

Evaporation

Question 3

What happens to blood flow to the skin when exposed to cold temperatures?

Accepted Answer

Decreases

Answer

Increases

Answer

Remains unchanged

Answer

Varies depending on the individual

Question 4

Which of the following is **not** a factor that affects the severity of AMS?

Accepted Answer

Physical fitness

Answer

Altitude

Answer

Rate of ascent

Answer

Age

Question 5

What is the primary role of the **respiratory** system in maintaining acid-base balance during exercise?

Accepted Answer

To excrete excess hydrogen ions

Answer

To retain bicarbonate ions

Answer

To regulate blood pH

Answer

To produce carbon dioxide

Question 6

What is the recommended minimum acclimatisation period for athletes travelling to high altitudes (>2500m)?

Accepted Answer

2 weeks

Answer

2 days

Answer

1 week

Answer

1 month

Question 7

At what altitude does the partial pressure of oxygen in the atmosphere become significantly lower?

Accepted Answer

3500 m

Answer

1500 m

Answer

2500 m

Answer

4500 m

Question 8

Which of the following factors does NOT influence the rate of heat loss through radiation?

Accepted Answer

Humidity

Answer

Surface area

Answer

Emissivity

Answer

Ambient temperature

Question 9

What is the most accurate method for measuring core temperature?

Accepted Answer

Rectal thermometer

Answer

Oral thermometer

Answer

Tympanic thermometer

Answer

Axillary thermometer

Question 10

Which of the following is NOT a typical symptom of heatstroke?

Accepted Answer

Diarrhea

Answer

Elevated core temperature

Answer

Headache

Answer

Nausea

Question 11

During exercise in hot conditions, what is the recommended fluid intake rate?

Accepted Answer

400-500 ml per hour

Answer

200-300 ml per hour

Answer

600-700 ml per hour

Answer

As much as possible

Question 12

How does the respiratory system help maintain acid-base balance during intense exercise?

Accepted Answer

Increases breathing rate to remove excess carbon dioxide, reducing blood acidity.

Answer

Decreases breathing rate to conserve carbon dioxide, increasing blood acidity.

Answer

Plays no role in acid-base balance regulation during exercise.

Question 13

Hypothermia affects the cardiovascular system. How does hypothermia impact heart rate and blood pressure?

Accepted Answer

Decreases heart rate and blood pressure

Answer

Increases heart rate and blood pressure

Answer

No effect on heart rate or blood pressure

Question 14

In cold conditions, which is the primary mechanism by which the body loses heat?

Accepted Answer

Convection

Answer

Radiation

Answer

Evaporation

Answer

Conduction

Question 15

Which of the following is a typical symptom experienced during altitude sickness?

Accepted Answer

Headache

Answer

Joint swelling

Answer

Hypoglycemia

Answer

Excessive sweating

Question 16

How does air pollution generally affect respiratory function?

Accepted Answer

Impairs lung capacity

Answer

Strengthens diaphragm function

Answer

Improves airway resistance

Answer

Enhances oxygen uptake

Question 17

Which strategy is most effective in mitigating the adverse effects of heat exposure?

Accepted Answer

Adequate hydration

Answer

Strenuous exercise

Answer

Alcohol intake

Answer

Caffeine consumption

Question 18

Which of the following is a potential negative health consequence of air pollution exposure?

Accepted Answer

Increased risk of cardiovascular disease

Answer

Reduced cancer incidence

Answer

Enhanced respiratory capacity

Answer

Boosted immune function

Question 19

Which physiological mechanism plays a key role in maintaining body temperature in cold conditions?

Accepted Answer

Vasoconstriction

Answer

Enhanced sweating

Answer

Vasodilation

Answer

Increased heart rate

Question 20

What is the central role of the hypothalamus in environmental physiology?

Accepted Answer

Regulation of body temperature

Answer

Stimulation of hormone release

Answer

Control of blood pressure

Answer

Coordination of muscle movement

Question 21

Which of the following is a direct physiological effect of altitude on the body?

Accepted Answer

Increased red blood cell production (to carry more oxygen)

Answer

Decreased heart rate

Answer

Reduced muscle mass

Answer

Increased blood pressure

Question 22

Which of the following is a common symptom of heat exhaustion?

Accepted Answer

Nausea and vomiting

Answer

Chills

Answer

Shaking

Answer

Confusion (more likely with heat stroke)

Question 23

What is the primary involuntary mechanism the body uses to generate heat in response to cold exposure?

Accepted Answer

Shivering (rapid muscle contractions that produce heat)

Answer

Vasodilation

Answer

Reduced blood flow to the extremities

Answer

Sweating