Control of Body Temperature (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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13 cards from this deck
Thermoregulatory centre location
Thermoregulatory centre location
In the brain
Thermoregulatory centre function
Thermoregulatory centre function
Monitors and controls body temperature
Normal human body temperature
Normal human body temperature
37.5°C
Vasodilation effect
Vasodilation effect
More blood flows closer to skin surface
Vasodilation result on energy
Vasodilation result on energy
Increases energy transfer from body
Response when temp. too high: sweat glands
Response when temp. too high: sweat glands
Produce sweat
How sweat cools the body
How sweat cools the body
Evaporates from skin, increases energy transfer away
Response when temp. too low: sweating
Response when temp. too low: sweating
Stops
Response when temp. too low: muscles
Response when temp. too low: muscles
Contract rapidly (shivering)
How shivering generates heat
How shivering generates heat
Through respiration
Response when temp. too low: hairs
Response when temp. too low: hairs
Stand on end, trap warm air, create insulating layer
Vasoconstriction effect
Vasoconstriction effect
Blood doesn't flow so close to surface
Vasoconstriction result on heat
Vasoconstriction result on heat
Less heat lost