Hypersensitivity Reactions Quiz
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Questions and Answers

What are the components that can trigger hypersensitivity reactions?

  • Endogenous self-antigens only
  • Exogenous antigens only
  • Both endogenous self-antigens and exogenous antigens (correct)
  • None of the above
  • Which type of hypersensitivity reaction is characterized by immediate or anaphylactic response?

  • Type IV
  • Type II
  • Type I (correct)
  • Type III
  • Which type of hypersensitivity reaction is antibody-mediated cytotoxic?

  • Type III
  • Type II (correct)
  • Type I
  • Type IV
  • Which type of hypersensitivity reaction is immune complex-mediated?

    <p>Type III</p> Signup and view all the answers

    Which type of hypersensitivity reaction is delayed or cell-mediated?

    <p>Type IV</p> Signup and view all the answers

    Which of the following best describes the complement system?

    <p>A group of proteins that enhance the effects of antibodies in destroying microorganisms</p> Signup and view all the answers

    Where are complement proteins synthesized?

    <p>In the liver, tissue macrophages, and fibroblasts</p> Signup and view all the answers

    Which of the following best describes the heat stability of the complement system?

    <p>It is heat-labile and can be inactivated by heating serum</p> Signup and view all the answers

    How many proteins are present in the complement system?

    <p>Approximately 20 proteins</p> Signup and view all the answers

    What does the term 'complement' mean in relation to the immune system?

    <p>To supplement the effect of other components, such as antibodies</p> Signup and view all the answers

    Study Notes

    Hypersensitivity Reactions

    • Components that can trigger hypersensitivity reactions include allergens, haptens, and autologins.

    Types of Hypersensitivity Reactions

    • Type I hypersensitivity reaction is characterized by immediate or anaphylactic response.
    • Type II hypersensitivity reaction is antibody-mediated cytotoxic.
    • Type III hypersensitivity reaction is immune complex-mediated.
    • Type IV hypersensitivity reaction is delayed or cell-mediated.

    The Complement System

    • The complement system is a group of proteins that works with antibodies to help eliminate pathogens from the body.
    • Complement proteins are synthesized in the liver.

    Characteristics of the Complement System

    • The complement system is heat-labile, meaning it is inactivated at high temperatures.
    • There are over 30 proteins present in the complement system.
    • The term 'complement' means "to complete" or "to fill in", referring to the system's role in completing the immune response by working in conjunction with antibodies.

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    Description

    Test your knowledge on hypersensitivity reactions with this quiz! Learn about the definition, types, and immune mechanisms involved in these harmful immune responses. Challenge yourself and expand your understanding of hypersensitivity reactions.

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