The Immune System
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Questions and Answers

Which line of defense is the innate immune system considered to be?

  • 4th line of defense
  • 2nd line of defense (correct)
  • 3rd line of defense
  • 1st line of defense
  • Which type of immunity is specific and considered to be the 3rd line of defense?

  • Innate immunity
  • Inherited immunity
  • Acquired immunity
  • Adaptive immunity (correct)
  • Which type of pathogens are intracellular?

  • Bacteria (correct)
  • Viruses
  • Fungi
  • Parasites
  • Which type of pathogens are extracellular?

    <p>Parasites</p> Signup and view all the answers

    Which pathogen is an example of an intracellular fungus?

    <p>Candida</p> Signup and view all the answers

    Which pathogen is an example of an extracellular virus?

    <p>HIV</p> Signup and view all the answers

    Which pathogen is an example of an intracellular parasite?

    <p>Plasmodium</p> Signup and view all the answers

    Which pathogen is an example of an extracellular parasite?

    <p>Entamoeba</p> Signup and view all the answers

    Which type of immunity is generic and non-specific?

    <p>Innate immunity</p> Signup and view all the answers

    What is the main function of the immune system?

    <p>To protect against pathogens</p> Signup and view all the answers

    Which type of white blood cell is responsible for phagocytosing bacterial antigens and digesting them in lysosomes?

    <p>Neutrophils</p> Signup and view all the answers

    Which type of white blood cell is responsible for defense against parasites and releasing factors that destroy extracellular parasites?

    <p>Eosinophils</p> Signup and view all the answers

    Which type of white blood cell is involved in allergic (hypersensitivity) responses and releases histamines, leukotrienes, prostaglandins, and platelet-activating factor (PAF)?

    <p>Mast Cells</p> Signup and view all the answers

    Which type of white blood cell can serve as antigen presenting cells (APCs) and phagocytose antigens?

    <p>Macrophages</p> Signup and view all the answers

    Which organ produces T lymphocytes and is responsible for positive and negative selection of T lymphocytes?

    <p>Thymus</p> Signup and view all the answers

    Which organ filters and processes antigens from the blood and filters out old red blood cells?

    <p>Spleen</p> Signup and view all the answers

    Which type of immune system is non-specific and considered the 1st and 2nd line of defense?

    <p>Innate immune system</p> Signup and view all the answers

    Which type of immune system is specific and considered the 3rd line of defense?

    <p>Acquired immune system</p> Signup and view all the answers

    Which type of white blood cell is responsible for recognizing self and destroying self-recognizing T cells to prevent autoimmune disease?

    <p>T Lymphocytes</p> Signup and view all the answers

    Which organs are considered primary organs of the immune system where immune cells are produced?

    <p>Bone Marrow and Thymus</p> Signup and view all the answers

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