COPY: Immunology intro revision notes quiz

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What is the primary function of lymph nodes?

Regulate body temperature

Filter lymph fluid and trap pathogens (correct)

Serve as a physical barrier against pathogens

Produce antibodies directly

Which of the following is NOT a characteristic of innate immunity?

Non-specific response

Specific antigen targeting (correct)

Immediate action

Lacks immunological memory

What role do mucous membranes play in the immune system?

Act as a barrier to prevent pathogen entry (correct)

Initiate inflammatory responses

Store lymph fluid for filtration

Produce antibodies like secretory IgA

Which of the following statements about adaptive immunity is true?

It involves B and T lymphocytes Signup and view all the answers

Which type of immunity uses macrophages and neutrophils for pathogen defense?

Innate immunity Signup and view all the answers

What mechanism is primarily responsible for identifying and triggering immune responses to pathogens?

Pathogen recognition receptors (PRRs) Signup and view all the answers

Which barrier is considered a physiological barrier in the immune system?

Tears and saliva Signup and view all the answers

What is a common effect of inflammatory responses triggered by injury?

Increased blood flow and cytokine release Signup and view all the answers

Which of the following is specifically associated with oral immunity?

Secretory IgA Signup and view all the answers

What distinguishes adaptive immunity from innate immunity?

It develops specific memory to pathogens Signup and view all the answers

What is the role of antibodies in the immune system?

They are special proteins produced to attack and weaken antigens. Signup and view all the answers

Which cells are responsible for engulfing and digesting pathogens?

Phagocytes Signup and view all the answers

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

To mature T lymphocytes. Signup and view all the answers

Which of the following describes the process of phagocytosis?

The engulfing and digestion of pathogens by phagocytes. Signup and view all the answers

What type of immune response do antigen presenting cells initiate?

Adaptive immunity Signup and view all the answers

Which of the following organs is primarily involved in filtering blood and storing immune cells?

Spleen Signup and view all the answers

What are opsonins and their function in the immune system?

Molecules that coat pathogens to enhance recognition by phagocytes. Signup and view all the answers

How do mucous membranes function in the immune system?

They provide a physical barrier and trap pathogens. Signup and view all the answers

Which type of cells are primarily produced in the bone marrow?

B lymphocytes Signup and view all the answers

What is apoptosis and its significance in the immune system?

It is a form of programmed cell death that maintains tissue homeostasis. Signup and view all the answers

What is the primary location where Immunoglobulin A (IgA) is found?

Lining of respiratory and digestive systems Signup and view all the answers

Which immunoglobulin is responsible for causing allergic reactions?

Immunoglobulin E (IgE) Signup and view all the answers

Which immunoglobulin type is the most common in blood tissues and fluids?

Immunoglobulin G (IgG) Signup and view all the answers

What is the main role of Immunoglobulin M (IgM) in the immune system?

Regulating immune response Signup and view all the answers

Which statement about Immunoglobulin D (IgD) is true?

It supports B cell maturation and activation. Signup and view all the answers

What characterizes the secretory form of Immunoglobulin A (IgA)?

Involved in the mucosal immune response Signup and view all the answers

In what way does IgE directly contribute to the allergic response?

By binding to mast cells to release histamine Signup and view all the answers

Which immunoglobulin is primarily involved in the secondary immune response?

Immunoglobulin G (IgG) Signup and view all the answers

Which type of immunoglobulin has the lowest concentration in the blood?

Immunoglobulin E (IgE) Signup and view all the answers

What distinguishes serum IgA from secretory IgA?

Ability to activate the complement system Signup and view all the answers

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

Phagocytosis and destruction of pathogens Signup and view all the answers

Which cell type is involved in antigen presentation to T cells?

Macrophages Signup and view all the answers

What role do B cells play in the immune response?

Produce antibodies Signup and view all the answers

Which of the following statements about T Helper cells is true?

They are essential for mediating immune responses. Signup and view all the answers

What do dendritic cells do in the immune system?

Link innate and adaptive immunity. Signup and view all the answers

How do natural killer cells function?

They destroy infected and tumor cells directly. Signup and view all the answers

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Questions and Answers

What is the primary function of lymph nodes?

Which of the following is NOT a characteristic of innate immunity?

What role do mucous membranes play in the immune system?

Which of the following statements about adaptive immunity is true?

Which type of immunity uses macrophages and neutrophils for pathogen defense?

What mechanism is primarily responsible for identifying and triggering immune responses to pathogens?

Which barrier is considered a physiological barrier in the immune system?

What is a common effect of inflammatory responses triggered by injury?

Which of the following is specifically associated with oral immunity?

What distinguishes adaptive immunity from innate immunity?

What is the role of antibodies in the immune system?

Which cells are responsible for engulfing and digesting pathogens?

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

Which of the following describes the process of phagocytosis?

What type of immune response do antigen presenting cells initiate?

Which of the following organs is primarily involved in filtering blood and storing immune cells?

What are opsonins and their function in the immune system?

How do mucous membranes function in the immune system?

Which type of cells are primarily produced in the bone marrow?

What is apoptosis and its significance in the immune system?

What is the primary location where Immunoglobulin A (IgA) is found?

Which immunoglobulin is responsible for causing allergic reactions?

Which immunoglobulin type is the most common in blood tissues and fluids?

What is the main role of Immunoglobulin M (IgM) in the immune system?

Which statement about Immunoglobulin D (IgD) is true?

What characterizes the secretory form of Immunoglobulin A (IgA)?

In what way does IgE directly contribute to the allergic response?

Which immunoglobulin is primarily involved in the secondary immune response?

Which type of immunoglobulin has the lowest concentration in the blood?

What distinguishes serum IgA from secretory IgA?

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

Which cell type is involved in antigen presentation to T cells?

What role do B cells play in the immune response?

Which of the following statements about T Helper cells is true?

What do dendritic cells do in the immune system?

How do natural killer cells function?

What type of immunity do cytotoxic T cells primarily participate in?

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

What is a major function of plasma cells in the immune system?

Which cell type is primarily responsible for combating parasitic infections?

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