Thermoregulation

Question 1

What is the definition of Thermoregulation?

Answer 1

Ability to maintain certain body temperature so cells can properly function

Question 1

What is critical to heat exchange

Answer 1

Surface area

Question 2

What happens if body can’t regulate temp

Answer 2

Proteins become denatured, intercellular fluids can freeze - cells die

Question 3

Conduction

Answer 3

Flow of energy through direct contact

Question 4

Convection

Answer 4

Flow of energy through a liquid

Question 5

Radiation

Answer 5

Transfer of energy through electromagnetic radiation

Question 6

Evaporation

Answer 6

Transfer of energy through a liquid eg sweat

Question 7

Endotherms

Answer 7

Warm blooded animals that have a constant body temp regardless of environment

Temp varies from skin to core can still function properly regardless of temp

Question 8

Ectotherms (thanks Rahul)

Answer 8

Cold blooded animals that depend on air temp to regulate metabolic rates

Question 9

If temp raises in endotherms?

Answer 9

Vasodilation occurs which increases blood flow to skin and sweating occurs

Question 10

If temp drops with endotherms?

Answer 10

Vasoconstriction occurs to constrict arteries close skin, and redistribute blood to the core of the body
Muscle contractions to produce heat (shivering)
Hair stands up (creates a layer of insulation)