22 Thermoregulation - Excessive Heat

Which of the following best describes homeostasis?

• The process by which the body loses heat through sweating

• The maintenance of a stable internal environment within the body

• The increase in body temperature during exercise

• The process of converting food into energy

Which method of heat loss involves the transfer of heat through direct contact with another object?

• Convection

• Evaporation

• Radiation

• Conduction

During a football match, a player cools down as air moves across their skin. Which method of heat loss is this?

• Convection

• Conduction

• Radiation

• Evaporation

Which of the following is NOT a method of heat loss from the body?

• Convection

• Conduction

• Insulation

• Evaporation

What is the primary method by which the body loses heat during intense exercise?

• Radiation

• Conduction

• Evaporation

• Convection

Which method of heat loss involves the emission of infrared rays from the body to the surrounding environment?

• Convection

• Conduction

• Evaporation

• Radiation

What is hyperthermia?

• A condition where the body temperature drops below normal

• A condition where the body temperature rises above normal

• The process of sweating

• The process of shivering

Which of the following is a common response of the body to excessive heat during sport?

• Shivering

• Vasoconstriction

• Sweating

• Decreased heart rate

Dehydration during exercise is primarily caused by which process?

• Increased evaporation of sweat

• Increased conduction

• Increased radiation

• Increased convection

Which of the following best explains why wearing light-coloured clothing is recommended during hot weather sports?

• It increases conduction of heat

• It reduces radiation absorbed from the sun

• It increases evaporation

• It increases convection