Thermoregulation

• Thermoregulation is the control of our internal body temperature.
• In order to warm up, the body constricts blood flow near our skin, so less heat is lost. And make our hairs stand creating insulating air.

  
• In order to warm up, we shiver. The energy used to shiver releases heat.

  
• When youre TOO HOT:

  • Sweat glands produce sweat and heat evaporates with it, which transfers energy to the environment.
  • The blood vessels under the skin dilate.(Vasodilation) so more blood flows and also transfers energy.

  
• When you're TOO COLD:

  • Hair stands up creating a insulating layer of air.
  • The blood vessels constrict blood supply.(Vasconstriction)
  • We also shiver using respiration to release energy and warm the body.

  
• The Temeperature receptors detect if the body temp is too high or low. The thermoregulatory centre recieves the information and triggers the effectors which are the sweat glands or muscles.

  
• In order to cool down, our blood vessels dilate (Vasolidation) to release heat to surroundings(exothermic). We produce sweat, when it evaporates it takes heat with it.