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Mass transport in humans (Oxyhaemoglobin dissociation curves (Factors…

- - - - Second thickest blood vessel
      - Take blood back to the heart
      - Contains pocket valves to prevent back flow of blood
    - - Thinnest blood vessels where exchange of nutrients occurs from the capillary to the tissues
      - only 1 layer of endothelial cells thick
    - - Arteries
        
        Thick muscular wall with lots of elastic fibres
        
        Narrow lumen to maintain high blood pressure
        
        Main blood vessel that takes blood away from the heart
        
        Vessels with the most stretch and recoil
        
        Thickest blood vessel
    - - Vessels that connect arteries and capillaries
      - Contain lots of muscle fibres in the wall so that the vessel can dilate or constrict to control blood flow to certain areas of the body
      - Can be considered as an organ as can receive neurological impulses
- - - - Smaller animals have a larger metabolic rate so shift is further to the right
    - - Haemoglobin sensitive to change in blood PH
      - More carbon dioxide bohr shift occurs higher pp for saturation of oxygen