Chapter 16 Innate Immunity Definitions Quiz
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Questions and Answers

Which lymphoid organ filters circulating blood to remove worn out red blood cells and pathogens?

  • Spleen (correct)
  • Lymph nodes
  • Peyer’s patch
  • Thymus

Where does T-cell maturation primarily occur?

  • Lymph nodes
  • Thymus (correct)
  • Bone marrow
  • Spleen

Which type of lymphoid tissue is found in the skin?

  • Peyer’s patch
  • MALT
  • GALT
  • SALT (correct)

What is the function of neutrophils in the immune system?

<p>React early to bacteria and foreign materials (B)</p> Signup and view all the answers

Where are fixed macrophages mainly located in the body?

<p>Tissues and organs (C)</p> Signup and view all the answers

Which lymphoid organ resembles the structure of a lymph node?

<p>Spleen (B)</p> Signup and view all the answers

Which type of leukocytes mature into macrophages in tissues where they are phagocytic?

<p>Monocytes (B)</p> Signup and view all the answers

Where are dendritic cells primarily found?

<p>Mucous membranes (D)</p> Signup and view all the answers

Which cells are part of adaptive immunity?

<p>NK cells (B)</p> Signup and view all the answers

What is the function of lymphatic vessels in the body?

<p>Return lymph to circulation (C)</p> Signup and view all the answers

Which cells carry microbes to lymph nodes for destruction?

<p>Macrophages (B)</p> Signup and view all the answers

What is the role of cytokines in phagocytosis?

<p>Stimulate an immune response (B)</p> Signup and view all the answers

Which process involves the attachment of a phagocyte to the surface of a microorganism?

<p>Adherence (D)</p> Signup and view all the answers

What does opsonization do to a microorganism?

<p>Make ingestion easier by coating it with serum proteins (A)</p> Signup and view all the answers

What triggers the oxygen-dependent system called the respiratory burst in phagocytosis?

<p>Ingestion of the microorganism (C)</p> Signup and view all the answers

Which interferon causes neutrophils and macrophages to kill bacteria?

<p>Interferon gamma (A)</p> Signup and view all the answers

How do microbial pathogens like Streptococcus pyogenes evade phagocytosis?

<p>By inhibiting adherence to phagocytes (A)</p> Signup and view all the answers

Which type of immunity is present at birth and provides rapid defense against any pathogen?

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

What do Toll-like receptors (TLRs) on host cells attach to in the immune response?

<p>Pathogen-associated molecular patterns (PAMPs) (A)</p> Signup and view all the answers

Which term refers to the inability to resist a disease?

<p>Susceptibility (C)</p> Signup and view all the answers

What do high white blood cell counts in the blood typically indicate?

<p>Autoimmune diseases (B)</p> Signup and view all the answers

Which type of immunity has a memory component and provides resistance to specific pathogens?

<p>Adaptive immunity (B)</p> Signup and view all the answers

What molecules are recognized by the receptors on white blood cells and are shared by microorganisms?

<p>Pathogen-associated molecular patterns (PAMPs) (D)</p> Signup and view all the answers

What is the mechanism by which Staphylococcus aureus kills phagocytes?

<p>Membrane attack complex (A)</p> Signup and view all the answers

Which microorganism escapes the phagosome to avoid destruction?

<p>Listeria monocytogenes (A)</p> Signup and view all the answers

What are the classic signs and symptoms of inflammation characterized by?

<p>Redness (rubor), Warmth (calor), Swelling (tumor) (A)</p> Signup and view all the answers

Which chemical mediator causes increased circulation and vasodilation in injured tissues?

<p>Histamine (D)</p> Signup and view all the answers

What is the name of the supporting connective tissue that needs repair during tissue repair?

<p>Stroma (C)</p> Signup and view all the answers

What initiates an abnormally high body temperature in the form of fever?

<p>Circulating pyrogens (D)</p> Signup and view all the answers

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