A nurse is addressing a group of nursing students about gamma globulins. What is the best response to the nursing students about the function of IgA?
A) Stimulates complement activity
B) Functions as an antigen receptor
C) Protects the fetus before birth against antitoxins, viruses, and bacteria
D) Helpful in defense against invasion of microbes via nose, eyes, lungs, and intestines
D
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IgA helps in defense against invasion of microbes via nose, eyes, lungs, and intestines. IgM stimulates complement activity. IgD functions as an antigen receptor. IgG protects the fetus before birth against antitoxins, viruses and bacteria.
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