Second Line of Defense: White Blood Cells and Defensive Proteins
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Questions and Answers

What is the second line of defense against pathogenic microorganisms?

  • Antibodies
  • Histamines
  • Neutrophils and macrophages (correct)
  • Cytokines
  • Which major response is part of the second line of defense?

  • Antigen presentation
  • Antibody production
  • Phagocytosis (correct)
  • T cell activation
  • Which type of white blood cells perform phagocytosis?

  • T lymphocytes
  • Natural killer cells
  • Neutrophils, macrophages, and dendritic cells (correct)
  • B lymphocytes
  • What is the most abundant type of white blood cells?

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

    What is the process through which some specific types of WBCs take in and digest foreign particles or microorganisms?

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

    How do neutrophils recognize and kill pathogens?

    <p>Phagocytosis or direct killing</p> Signup and view all the answers

    What type of WBCs are specially adapted to phagocytize bacteria?

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

    What is the nucleus shape of mature neutrophils?

    <p>Multi-lobed (3-5 lobed)</p> Signup and view all the answers

    Where do the majority of mature neutrophils migrate after maturation?

    <p>From the blood into the tissues</p> Signup and view all the answers

    What is the primary function of the second line of defense in our body?

    <p>Recognizing and killing pathogens</p> Signup and view all the answers

    Which type of cells are specially adapted to phagocytize bacteria?

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

    What is the shape of the nucleus of mature neutrophils?

    <p>Multi-lobed</p> Signup and view all the answers

    Which major response involves the process of some specific types of WBCs taking in and digesting foreign particles or microorganisms?

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

    Where do the majority of mature neutrophils migrate after maturation?

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

    What is the first line of defense against pathogenic microorganisms?

    <p>Skin and mucous membranes</p> Signup and view all the answers

    Which cells are non-specific in nature and comprised of a wide variety of white blood cells and defensive proteins?

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

    What are the primary cells involved in cytotoxicity during the second line of defense?

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

    Which response is associated with an increase in body temperature to combat infections?

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

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