Steps Combating Pathogen Invasion - lecture
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Questions and Answers

What is the first line of defense against pathogen invasion?

  • Antibodies
  • Resident tissue macrophages (correct)
  • Complement molecules
  • Tissue repair

Which molecules mark bacteria for destruction?

  • Cytokines
  • Chemotaxins
  • Histamine
  • Complement molecules (correct)

What is the purpose of increased capillary permeability and localized edema?

  • To prevent leukocyte migration
  • To cause pain
  • To promote tissue repair
  • To allow leukocyte migration (correct)

What is the role of cytokines in the immune response?

<p>To promote tissue repair (B)</p> Signup and view all the answers

Which leukocytes are involved in the destruction of bacteria?

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

What are the four symptoms mediated by cytokines during the immune response?

<p>Heat, redness, swelling, pain (B)</p> Signup and view all the answers

What is the process of cleaning up and tissue repair called?

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

What is the function of chemotaxins?

<p>To promote leukocyte migration (C)</p> Signup and view all the answers

What type of response is the immune response to foreign invasion or tissue damage?

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

Which cytokines are released by resident tissue macrophages?

<p>TNF and IL-1 (A)</p> Signup and view all the answers

What is the role of histamine during the immune response?

<p>To increase capillary permeability (B)</p> Signup and view all the answers

What is the process by which leukocytes move towards the site of infection or tissue damage called?

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

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