functions of blood- blood clotting

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  • functions of blood (blood clotting)
    • women: 4-5 litres of blood
      • men: 5-6 litres
    • loosing 2 litres of blood = serious issues or death
    • if skin is broken = pathogens gaining access
      • = blood poisoning & organ damage
    • when exposed to air or foreign material
      • = activates chain reaction
    • coagulation:  converts soluble fibrinogen into insoluble fibrin
      • forms net like structure
        • traps platelets & erythrocytes = clot
    • haemophilia: lack erythrocytes or platelets
      • = blood no longer clots
        • chronic blood loss
    • platelets: help activate immune system
      • = minimising threat of pathogenic invasion

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