Immunology Introduction by Dr. Abdulrahman A. Alsultan
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Questions and Answers

Which of the following is NOT one of the key principles of the immune system?

  • Non-reactivity to self to prevent injury to the host
  • Contraction and homeostasis to allow response to newly encountered antigens
  • Reactivity to self-antigens to prevent autoimmunity (correct)
  • Specialization to generate optimal defense against different microbes

Which of the following cells are responsible for the specific recognition of antigens?

  • Macrophages
  • Granulocytes
  • Dendritic cells
  • Lymphocytes (correct)

What is the primary function of antigen-presenting cells (APCs) in the immune system?

  • Capture and display microbial antigens to lymphocytes (correct)
  • Eliminate antigens
  • Regulate the contraction and homeostasis of the immune response
  • Produce antibodies

Which of the following statements about effector cells is NOT true?

<p>Effector cells are responsible for initiating the adaptive immune response (D)</p> Signup and view all the answers

Which of the following lymphoid organs plays a role in displaying antigens to B cells during the humoral immune response?

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

Which type of lymphocyte is primarily responsible for cell-mediated immunity?

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

What is the role of natural killer cells in the immune system?

<p>Recognize and eliminate virus-infected and tumor cells (D)</p> Signup and view all the answers

Which of the following cells are responsible for the initiation of the T cell response?

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

Which of the following principles of the immune system allows it to respond to newly encountered antigens?

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

Which type of cell is primarily responsible for the effector phase of cell-mediated immunity?

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

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