Questions and Answers
What is the primary function of IgG?
What is IgA predominantly found in?
Body secretions
IgM is the first antibody produced during an immune response.
True
What is the main role of IgD?
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Which of the following is a function of IgE?
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Study Notes
Types of Immunoglobulins
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IgG
- Main antibody in the secondary immune response
- Provides antiviral, antitoxin, and antibacterial protection
- Crucial for newborn immunity, crossing the placenta
- Activates the complement system and enhances macrophage function
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IgA
- The most abundant immunoglobulin in mucosal areas
- Present in body secretions such as tears, saliva, and breast milk
- Plays a key role in protecting mucous membranes from pathogens
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IgM
- The first antibody produced during the initial exposure to an antigen
- Acts as a natural antibody involved in early immune responses
- Efficiently activates the complement system
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IgD
- Found primarily on the surface of B lymphocytes
- Plays a role in the maturation and differentiation of B cells
- Functions as a receptor for antigens on B cells
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IgE
- Associated with allergic reactions and hypersensitivity responses
- Binds to mast cells and basophils, triggering release of histamine
- Involved in defense against parasitic infections
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Description
Explore the different types of immunoglobulins with these flashcards. Each card provides a definition and function of various classes such as IgG, IgA, and IgM, helping you understand their roles in the immune system. Perfect for students studying immunology!
