Cells, Tissues and Organs of the Immune System - Lecture 2
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Questions and Answers

What is the main topic of Lecture 2 in the course?

  • Adaptive vs. Innate Immune System
  • Self vs. Non-self Tolerance
  • Vaccination Procedures
  • Cells and Tissues of the Immune System (correct)

Which statement best describes vaccination?

  • A procedure that involves administration of pathogenic forms of disease-causing agents.
  • A procedure that desensitizes an individual to environmental pathogens.
  • A procedure that induces an immune response. (correct)
  • A procedure that provides short-term protection against pathogens.

Why does our immunity to the flu only last for one season?

  • Due to rapid changes in virus strains (mutations). (correct)
  • Due to the nature of the adaptive immune system.
  • Due to the inefficiency of the vaccination procedure.
  • Due to lack of access to universal vaccines.

True or False: The Adaptive immune system is fast-acting while the Innate immune system is pathogen-specific.

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

According to the reminder provided, what does 'Self' refer to in the context of immunity?

<p>Commensal bacteria and our own tissues/cells. (C)</p> Signup and view all the answers

When are Professor Mahtani's office hours?

<p>Mondays 2-3pm and Wednesdays 1-2pm (B)</p> Signup and view all the answers

Where does hematopoiesis occur?

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

What type of stem cells give rise to all cell types in the body?

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

Which primary lymphoid organ is responsible for the development of a specific immune cell precursor into a mature immune cell?

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

What progenitor cells give rise to lymphocytes in the immune system?

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

Which type of leukocytes are important for innate immunity?

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

Which primary lymphoid organ is a site of immune cell development and was initially thought to be a useless organ?

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

Which type of cells maintain the niche for immune cell development?

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

Which leukocytes arise from myeloid progenitor cells?

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

What do granulocytes release during infection?

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

Which type of stem cells have the ability to differentiate into diverse and mature cell types with specialized function?

<p>Hematopoietic stem cells (A)</p> Signup and view all the answers

What is the main focus of Lecture 2 in the course?

<p>Immune system cells and tissues (D)</p> Signup and view all the answers

Which type of cells maintain the niche for immune cell development?

<p>Mesenchymal stromal cells (C)</p> Signup and view all the answers

What is the impact of rapid changes in virus strains (mutations) on flu immunity and vaccination?

<p>Vaccination only provides short-term protection due to strain mutations (B)</p> Signup and view all the answers

Which primary lymphoid organ is responsible for the development of a specific immune cell precursor into a mature immune cell?

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

What do granulocytes release during infection?

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

What progenitor cells give rise to lymphocytes in the immune system?

<p>Lymphoid progenitor cells (D)</p> Signup and view all the answers

Which type of immune response can be lifelong?

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

Where do adult immune cells develop?

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

Which type of stem cells give rise to tissue-specific cell types?

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

Which primary lymphoid organ was initially thought to be a useless organ?

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

Which progenitor cells give rise to lymphocytes in the immune system?

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

What type of cells maintain the niche for immune cell development?

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

What type of leukocytes arise from myeloid progenitor cells?

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

Which type of leukocytes are important for innate immunity?

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

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