HideShow resource information
  • Created by: hannahx
  • Created on: 05-01-13 12:03
View mindmap
    • localised allergic reaction
      • mite faeces
      • pollen
      • animal fur
      • can be triggered or made worse by factors such as
        • air pollutants
        • exercise
        • cold air
        • infections
        • stress
    • white blood cells in the bronchi and bronchioles release chemicals called HISTAMINE. the result of this is...
      • lining of the airways inflamed
      • more mucus is secreted
      • fluid leaves the capillaries and enters the airways
      • muscle around the bronchioles contracts and constricts the airways
      • difficulty in breathing
      • wheezing while breathing
      • tight feeling chest
      • coughing


No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »