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Immunology Week 1

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Which cells help tailor the immune response in the adaptive system?

Antibodies

What is the main function of Th1 cells?

Mediate response against intracellular pathogens

Which cells recognize and kill infected or cancer cells?

Granulocytes

What is the role of Th2 cells in the immune response?

<p>Coordinate response against extracellular bacteria</p> Signup and view all the answers

Which cells monitor and inhibit the activity of other T cells?

<p>T regulatory cells</p> Signup and view all the answers

Which of the following is NOT involved in the adaptive immune response?

<p>M1 cells</p> Signup and view all the answers

What type of immunity does the body rely on to respond to a cut on Mrs. Smith's cat Simon?

<p>First line defence</p> Signup and view all the answers

Which component of the immune system is currently taking effect in a ferret infected five days ago?

<p>Humoral immunity</p> Signup and view all the answers

When a phagocyte ingests and degrades a B cell, what type of immunity is being demonstrated?

<p>None of the above</p> Signup and view all the answers

Which type of immunity is characterized by a slow response but never forgets a pathogen it has encountered?

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

What is the function of the complement system in the immune response?

<p>Enhancing the activity of antibodies</p> Signup and view all the answers

Which type of immunity is always ready and reacts the same way every time?

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

What is the common origin of all immune cells?

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

What type of progenitor cell do Natural Killer (NK) cells share with T and B cells?

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

What is the primary function of neutrophils in the immune system?

<p>Phagocytosis</p> Signup and view all the answers

Which immune cell is responsible for defence against parasites and inflammation?

<p>Eosinophils</p> Signup and view all the answers

Which immune cell has a segmented nucleus and neutrally staining granules?

<p>Neutrophils</p> Signup and view all the answers

What is the process by which basophils and eosinophils release their granules?

<p>Degranulation</p> Signup and view all the answers

Which type of immune cells are known as 'big eaters' and function as sentinel cells?

<p>Macrophages/Monocytes</p> Signup and view all the answers

Which type of immune cell is responsible for mediating allergic reactions by releasing histamine?

<p>Mast cells</p> Signup and view all the answers

Which type of immune cell differentiates in the bone marrow by myeloid or lymphoid progenitors and matures in either the bone marrow, lymphoid, or non-lymphoid tissues?

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

Which type of immune cells is responsible for recognizing and killing virus-infected cells or tumor cells non-specifically?

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

Which type of immune cells are involved in local allergic reactions and defence against parasites?

<p>Mast cells</p> Signup and view all the answers

Which type of immune cells are the professional antigen presenting cells that activate T cells in lymph nodes?

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

Which of the following is a primary organ in a cat?

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

Which type of immune cells undergo negative selection in the thymus?

<p>T-lymphocytes</p> Signup and view all the answers

Which of the following cell communication mechanisms releases ligands into the blood?

<p>Endocrine</p> Signup and view all the answers

Which receptor is only found on adaptive immune cells?

<p>BCR</p> Signup and view all the answers

Which of the following is an encapsulated secondary lymphoid organ?

<p>Lymph nodes</p> Signup and view all the answers

Which of the following organs undergoes involution over time?

<p>Thymus</p> Signup and view all the answers

Which of the following cells are responsible for the storage and recycling of iron?

<p>Red pulp cells</p> Signup and view all the answers

Which of the following cells are responsible for the filtration of lymph in lymph nodes?

<p>Reticular cells</p> Signup and view all the answers

Which of the following is a function of M cells?

<p>Sampling of lumen</p> Signup and view all the answers

Which of the following is not a function of the spleen?

<p>Production of lymphocytes</p> Signup and view all the answers

Which cells recognize and kill virus-infected cells or tumor cells non-specifically?

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

Which immune cells are responsible for mediating allergic reactions by releasing histamine?

<p>Mast cells</p> Signup and view all the answers

What is the function of connective tissue mast cells in the immune system?

<p>Local allergic reaction</p> Signup and view all the answers

Which immune cells housekeep dead cells of the body?

<p>Macrophages</p> Signup and view all the answers

Which immune cells induce apoptosis by releasing granules?

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

What is the main function of dendritic cells in the immune system?

<p>Bridge the innate and adaptive immunity</p> Signup and view all the answers

Which T cell subset helps coordinate the immune response against extracellular pathogens by activating B cells, granulocytes, and mast cells?

<p>Th2</p> Signup and view all the answers

Which type of cell acts as a professional antigen-presenting cell to activate T cells in lymph nodes?

<p>Plasmacytoid DC cells</p> Signup and view all the answers

Which type of immune cell undergoes negative selection in the thymus during its development?

<p>CD8+ T cells</p> Signup and view all the answers

Which T cell subset monitors and inhibits the activity of other T cells to maintain immune tolerance?

<p>T regulatory cells</p> Signup and view all the answers

Which type of immune cell is responsible for recognizing and killing infected or cancer cells via cytotoxic granules?

<p>Cytotoxic T cells</p> Signup and view all the answers

Which T cell subset mediates the response of other immune cells against intracellular pathogens?

<p>Th1 cells</p> Signup and view all the answers

Where are lymphoid cells first produced?

<p>Yolk sac</p> Signup and view all the answers

Which receptor is found only on adaptive immune cells?

<p>BCR</p> Signup and view all the answers

Where do B lymphocytes develop in birds?

<p>Bursa of Fabricius</p> Signup and view all the answers

Which secondary organ functions to filter lymph and facilitate interactions between dendritic cells and lymphocytes?

<p>Spleen</p> Signup and view all the answers

Which type of immunity responds slowly but has memory against encountered pathogens?

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

Where are M cells primarily found in the immune system?

<p>Peyer's patches</p> Signup and view all the answers

Which organ undergoes involution over time and is responsible for B lymphocyte maturation?

<p>Bursa of Fabricius</p> Signup and view all the answers

Which type of immune cell is responsible for recognizing and killing virus-infected cells or tumor cells non-specifically?

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

Which of the following cells does NOT play a role in fighting parasitic infections?

<p>T cells</p> Signup and view all the answers

Which process is NOT a role of macrophages?

<p>Degranulation</p> Signup and view all the answers

What does neutrophilia indicate in Molly, the golden retriever, based on her bloodwork results?

<p>She has a high neutrophil count</p> Signup and view all the answers

Which immune cell has a segmented nucleus and neutrally staining granules?

<p>Neutrophils</p> Signup and view all the answers

Which type of immune cells are responsible for the filtration of lymph in lymph nodes?

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

What is the primary function of neutrophils in the immune system?

<p>Phagocytosis and killing of bacteria and fungi</p> Signup and view all the answers

Which immune cell has a segmented nucleus and neutrally staining granules?

<p>Neutrophil</p> Signup and view all the answers

Which of the following cells are responsible for the filtration of lymph in lymph nodes?

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

What is the main function of Th1 cells?

<p>Stimulating macrophage function</p> Signup and view all the answers

Which type of immune cell is responsible for mediating allergic reactions by releasing histamine?

<p>Basophil</p> Signup and view all the answers

What type of progenitor cell do Natural Killer (NK) cells share with T and B cells?

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

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