thermoregulatory

Question 1

what is the optimum temperature for the body

Answer 1

37 degrees celcius

Question 2

where is body temperature regulated

Answer 2

in the thermoregulatory centre in the brain

Question 3

what happens when temperatures are too high

Answer 3

• vasodialation : blood vessels dialate
• sweat is produced, evaporating and cooling us down
• hairs lay flat, making sure there is no insulating air

Question 4

what happens when temperatures are too low

Answer 4

• vasoconstriction : muscles cells contract and restrict, the movement requiring energy from respiration and keeping us warm
• hairs stand erect , creating an insulating layer of air
• blood vessels constrict, decreasing blood flow and saving heat

Question 5

what type of process/loop is thermoregulation

Answer 5

negative feedback