Immune System and Lymphatic System Organization Quiz

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What is the main function of lymph nodes?

Filtering pathogens from blood (correct)

Secreting chemokines

Absorbing dietary lipids and fat-soluble vitamins

Producing plasma cells

Which of the following areas lack lymph vessels according to the text?

Spleen

Bone marrow (correct)

Thymus gland

Skin

What are the main functions of B cells in the immune system?

Produce plasma cells (correct)

Coordinate adaptive immunity

Secrete chemokines

Ingest pathogens

Where do T cells mature in the human body?

Thymus gland Signup and view all the answers

Which immune cells are considered the first line of defense against viruses and some cancers?

Natural killer cells Signup and view all the answers

What is the role of antigen in the immune system?

Bind to B or T cells Signup and view all the answers

Where are germinal centers, nodes, and nodules found?

In lymph nodes Signup and view all the answers

What is the function of dendritic cells and macrophages in lymphoid tissues?

Killing pathogens Signup and view all the answers

What causes swelling of the tonsils?

An active immune response to infection Signup and view all the answers

What is the main function of spleen in the lymphatic system?

Filtering blood Signup and view all the answers

Where are mucosa-associated lymphoid tissue (MALT) lymphoid follicles commonly found?

In breast tissue, GI tract, lungs, and eyes Signup and view all the answers

What is the most serious inherited type of combined immunodeficiency disease?

Severe combined immunodeficiency disease (SCID) Signup and view all the answers

Which of the following statements about HIV/AIDS is true?

HIV/AIDS primarily targets and kills helper T cells. Signup and view all the answers

What is the primary characteristic of immediate type 1 hypersensitivity reactions?

They are rapid reactions caused by IgE binding to mast cells, leading to degranulation. Signup and view all the answers

Which type of hypersensitivity reaction is associated with a mismatched blood transfusion?

Type 2 hypersensitivity Signup and view all the answers

What is the primary characteristic of delayed type 4 hypersensitivity reactions?

They are standard cellular immune responses that take 24-72 hours to manifest symptoms. Signup and view all the answers

Which of the following statements about autoimmune diseases is true?

Autoimmune diseases are treated with immunosuppressive drugs and anti-inflammatories. Signup and view all the answers

Which of the following is NOT a function of the innate immune system?

Production of antibodies against specific pathogens Signup and view all the answers

Which of the following describes the role of cytokines in the immune response?

They allow nearby cells to communicate with each other Signup and view all the answers

What is the primary function of regulatory T cells?

Suppress other T cell immune responses Signup and view all the answers

Which of the following antibody classes is primarily responsible for protecting mucosal surfaces?

IgA Signup and view all the answers

What is the process by which the immune system eliminates self-reactive T cells during development?

Negative selection Signup and view all the answers

Which of the following is the primary function of helper T cells (Th1 and Th2)?

Regulate the activity of other immune cells Signup and view all the answers

What is the process by which the immune system generates a diverse repertoire of antigen receptors?

Gene rearrangement Signup and view all the answers

Which of the following is a mechanism of passive immunity?

Transfer of antibodies from mother to fetus Signup and view all the answers

What is the primary function of the complement system?

All of the above Signup and view all the answers

Which of the following is the primary mechanism by which viruses are targeted by the immune system?

Cytotoxic T cell-mediated killing and interferons Signup and view all the answers