Please enable JavaScript.

Coggle requires JavaScript to display documents.

Thermoregulation - Control of our internal body temperature, Louis Aldwell…

- - - - enzyms slow
    - - enzyms denature and dont work at all
- - - - Ercetor muscles relax
        
        hairs fall flat
      - blood vessles/cappilieries expand - Vasodilate
        
        More warm blood flowing close to skin surface - more heat energy transferred to the surroundings - hence why we get red faces when hot
      - Sweat
        
        Sweat glands will take water and soidum out of blood and will make sweat.
        
        As sweat evaporates, water/salt molecules need to be broken, and as energy is required for bonds to break, heat energy from the skin is used therefore cooling down the skin. This is called the latent heat of vaporisation
        
        Humid environment will cause sweat to not as effectively evaporate
        
        This causes the body to use water, so therefore more water must be drunk and our body tells us we are thirsty. Lowers plasma volume causing and cannot sweat anymore
        
        if wearing lots of clothes, cannot sweat therefore blood temp rises and heat temp rises
    - - Conserve heat
        
        Constrict blood vessles that lay near the top of our skin - vasoconstriction
        
        Less blood flows near the surface and therefore less heat energy is lost to our surrounding
        
        Contract erector muscles which causes our hair to stand on end
        
        This creates a layer of insulating air, to keep heat energy in
      - Generate more heat
        
        Shivering
        
        muscles contract automatically
        
        Muscles contracting does not produce heat, but a lot of atp energy is need to contract the muscles and since resperation produces heat energy as waste, the process of this warms us up
  - - - Found in abdominals, aspophagus, stomach
        
        Detect temp of blood in core of body
    - - Found in dermis of skin
        
        different nerve endings - some for cold, some for hot
- - - - Catobalism
        
        breaking down of large molecules into smaller molecules
- - - - Direct contact with something cold
    - - Through currents of warm air leaving us
    - - Loses heat through radiation