Immunoglobulins Flashcards
Relating to hypersensitivity reactions
Is the inflammatory response natural/innate or acquired/adaptive immunity?
Natural/innate immunity
Describe natural/innate immunity
- Does not require prior exposure to the offending agent (antigen)
- Is non-specific and lacks memory
Describe acquired/adaptive immunity
- A specific response to a specific antigen
- Requires a sensitizing exposure
- Response is magnified by subsequent exposures
Where are IgA antibodies found in the body?
- Nose
- Breathing passages
- Digestive tract
- Ears
- Eyes
- Vagina
IgA antibodies protect ___ from foreign organisms and substances.
body surfaces (that are exposed to the outside)
Which bodily fluids contain IgA?
Saliva and tears
About 10-15% of the antibodies usually present in the body are…
IgA antibodies
Which bodily fluids contain IgG?
All bodily fluids
Which antibodies are the smallest but most abundant, comprising about 75-80% of antibodies in the body?
IgG antibodies
Which antibodies are considered the most important for fighting bacterial and viral infections?
IgG antibodies
Which antibodies are the only type of antibody that can cross the placenta?
IgG antibodies
Which antibodies will confer immunity to the fetus?
IgG antibodies
Which antibodies are largest?
IgM antibodies
Which bodily fluids contain IgM?
Blood and lymph fluid
Which antibody is the first type produced in response to an infection?
IgM antibodies
Which antibodies normally comprise about 5-10% of all the antibodies in the body?
IgM antibodies
Where are IgD antibodies found in the body?
Small amounts in the tissues that line cavities inside the body
What is the function of IgD antibodies?
Not well understood
Which antibody plays a role in allergic reactions to some substances such as milk, some medications, and some poisons?
IgD antibodies
Where are IgE antibodies found in the body?
Lungs, skin, and mucous membranes
Which antibodies help protect the body against foreign substances such as pollen, fungus spores, and animal dander?
IgE antibodies
IgE antibody levels are often high in people with…
allergies (all kinds)
