Immune System Cells and Functions Quiz

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18 Questions

What is the primary function of the humoral branch of the immune system?

Primary defense against bacterial infection

Which cell type is responsible for cell-mediated immunity and defense against viral and fungal infections?

T lymphocytes

Which primary lymphoid organ is responsible for the maturation and differentiation of B lymphocytes?

Bone marrow

What is the main function of antibodies produced by B lymphocytes?

Direct combination and neutralization of bacterial toxins

Which immune cell type is responsible for the rejection of tissue transplants?

T lymphocytes

What is the main difference between the humoral and cellular branches of the immune system?

Humoral involves antibody production, while cellular involves direct cell-to-cell contact

Which region of the lymph node is primarily populated by T lymphocytes?

Paracortical region

Which part of the spleen is primarily populated by B lymphocytes?

White pulp

Which type of antigen can stimulate antibody production without the help of T cells?

Thymic-independent antigen

Which property of an antigen refers to its ability to induce a specific immune response?

Immunogenicity

Which type of lymphoid tissue is part of the gut-associated lymphoid tissue (GALT)?

Peyer's patches

Which of the following is a key difference between antigens and immunogens?

Antigens are substances that react with antibodies or sensitized T cells, while immunogens are substances that can induce an immune response.

Which of the following is a key characteristic of adaptive immunity?

It allows the body to recognize and respond to specific antigens.

What is the primary function of T lymphocytes (T cells) in the immune system?

To coordinate the cell-mediated immune response.

Which of the following is a key component of the lymphoid system?

Lymph nodes

What is the primary function of B lymphocytes (B cells) in the immune system?

To produce antibodies against pathogens.

What is the term used to describe the ability of a pathogen to cause disease?

Pathogenicity

Which of the following is an example of a cell-mediated immune response?

The killing of infected cells by cytotoxic T cells.

Test your knowledge on the functions of immune system cells such as T lymphocytes and B lymphocytes. Explore topics including rejection of tissue transplants, delayed hypersensitivity to tuberculin, cancer cell destruction, and antibody production.

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