APoE Quiz 5

"In the heat, clothing functions as all of these except "

 

source of radiation

(resistance to dry heat exchange, resistance to evaporative heat loss, insulation)

Heat gain as a result of sitting on the hot ground would be categorized as what?

Conduction

The ultimate goal of heat acclimation is to reduce core temperature during exercise. Body composition and size have a significant impact on heat loss in the cold.

Both statements are true

Which of these is a response to a single bout of exercise in the heat?

Increased vasodilation of skin arteriols

Whose body morphology will lead to the most heat loss at a given cold temperature?

Slender child

“Of the four major variables of heat transfer, which one is most important for daily living?”

Convection

Body composition and size have a significant impact on heat loss in the cold. Swimming in 12 °C water is more dangerous than running in 12 °C air.

Both statements are true

“During exercise in the cold, muscle”

Contractile force decreases

Changes in temperature are initially sensed by what?

Thermoreceptors

"For thermoregulatory purposes, the body can be divided into two major compartments: the superficial shell and the deep core. Sweating and skin vasodilation are the body's only physiological heat loss mechanisms."

Both statements are true