Thermoregulation Flashcards
Define thermoregulation
Control of internal body temprature . The normal homeostatic level is 37 degrees
What controls the internal temperature of the body
The hypothallamus detects blood temprature
What happens to our enzymes if our body becomes too hot
They become denatured and no substrates will be broken down for energy to be released
If your body is too cold …
Shivering -uses energy
Increased respiration-releases more energy from food
Vasoconstriction- the narrowing of blood vessels near the surface of the skin
Hair stands up-catches air for insulation
If your body is too hot …
Sweating-water evaporates from skin surface taking heat away
Vasodilation-widening of blood vessels near the surface of the skin
Hair lies flat
What is the other term for the hypothalamus
Thermoregulatory centre
