Immune System Timeline

By fionabuttrum
  • Step 1

    Step 1

    The food or allergen is eaten/consumed.
  • Step 2

    Step 2

    When the allergen is eaten, a IgE antibody is made and it attaches itself to tissue cells , so if the allergen is eaten again, the body will be ready.
  • Step 3

    Step 3

    The allergen is eaten/consumed, and enters the body again.
  • Step 4

    Step 4

    When the allergen enters the body, it binds to the IgE antibodies and sends signals to the body to release large amounts of histamine.
  • Step 5

    Step 5

    The histamine released causes an allergic reaction.
  • Step 6

    Step 6

    Allergic reactions cause many different symptoms such as irritation and swelling in certain parts of the body.
  • Step 7

    Step 7

    The Immune System also is possibly affected with the swelling of a mouth, itching of lips, difficulty breathing, stomach cramps, vomiting, hives, or rashes. The most serious reaction to an immune response to food can result in anaphylaxis.