Immune System Module 1: Antigen Recognition and Immune Responses
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Questions and Answers

What is the study of the body’s defence mechanisms called?

  • Oncology
  • Immunology (correct)
  • Epidemiology
  • Pathology

Which term is derived from the Latin 'immunis' meaning 'free'?

  • Immunity (correct)
  • Inflammation
  • Antigen
  • Pathogen

What is the main purpose of immunology?

  • To study tumors
  • To understand aging
  • To destroy pathogens without harming self (correct)
  • To investigate genetic disorders

Which condition did David Phillip Vetter suffer from?

<p>Severe combined immunodeficiency (SCID) (A)</p> Signup and view all the answers

What was the cause of David Phillip Vetter's death at age 12?

<p>Burkitt's lymphoma (B)</p> Signup and view all the answers

Which of the following is NOT a non-specific defence mechanism?

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

What is the process by which the immune system distinguishes between self and nonself?

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

Which cell surface macromolecules are used by the immune system to distinguish between endothelial cells and bacteria?

<p>MHC I or MHC II receptors (A)</p> Signup and view all the answers

What is one of the most important defenses provided by the skin?

<p>Physical barrier against pathogens (A)</p> Signup and view all the answers

What is the term for the process where pathogens entering the tissues cause various cells of the immune system to secrete special proteins collectively called cytokines?

<p>Non-specific defense mechanisms (C)</p> Signup and view all the answers

What is the term for the response mediated by various cytokines and other proteins, where damaged cells release histamine, serotonin, and other substances which dilate the blood vessels in the infected area?

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

What is thought to be caused by neutrophils releasing endogenous pyrogens, including Interleukin-1 and Prostaglandins?

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

What allows cells and molecules of the immune system to more easily reach the site of injury/infection during inflammation?

<p>Increased blood flow (A)</p> Signup and view all the answers

What is the term for the process where immune cells are attracted to the site of injury by specific cytokines?

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

What do damaged cells release during inflammation that leads to tissue edema?

<p>Histamine, interleukins and prostaglandins (C)</p> Signup and view all the answers

Which group of cytokines are effective in inhibiting viral replication and production of viral proteins?

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

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