Immune System Response

By gerritday
  • 1 CE

    First Exposure to Allergen

    Person is exposed to food allergen for the first time but no outward response is experienced.
  • Internal Response of First Exposure to Allergen
    2

    Internal Response of First Exposure to Allergen

    Internally the person's body forms a large amount of IgE antibodies that attach to cells all over their body.
  • 3

    Body is Prepared for Second Exposure

    The body is ready if the allergen enters the body again.
  • 4

    Second Exposure to Food Allergen

    Person eats food allergen for the second time. This time the allergen binds to the IgE antibodies that were formed after the first exposure.
  • 5

    Release of Histamines

    Signal is sent out for the body's immune system to respond by releasing large amounts of histamines into the body causing an allergic reaction.
  • 6

    Allergic Reaction

    The allergic reaction causes the body to respond within minutes to seconds through Skin: rash, redness and/or swelling; Nose: sneezing, itching and/or excessive nasal secretions; Lungs: shortness of breath, wheezing, coughing and/or swelling of airway; Digestive: stomach cramps, vomiting and/or diarrhea.