18 Questions
Which immune cells process and present antigens to T cells?
Macrophages and dendritic cells
What is the primary function of cytokines?
To activate and differentiate immune cells
Which type of cytokine is produced by lymphocytes?
Lymphokine
What is the main function of chemokines?
To induce the attraction of leukocytes to sites of inflammation
Which cell type manufactures and releases cytokines, similar to T-helper cells?
Antigen-Presenting Cells (APCs)
What type of cytokine is produced by any cell infected by viruses?
Interferons
What is the primary function of TC cells?
To recognize antigens associated with MHC-I on the surface of other cells
What is the role of CD markers on T cells?
To recognize the type of HLA (MHC) on the displaying cell surface
What type of cells are responsible for killing virally and tumor-transformed cells as well as bacteria, parasites, and fungi?
Natural Killer Cells
What is the process by which most natural antigens are processed?
Antigen processing by APCs
What is the function of surface immunoglobulins (SIGs) on B cells?
To recognize specific antigens
What type of cells undergo transformation to form plasma cells and B memory cells?
B cells
What is a function of tumor necrosis factor?
Stimulates the expression of adhesion molecules
What is the role of opsonization in the immune response?
To prepare bacteria to attach more easily to macrophages
What is the function of the thymic cortex?
To provide a site for the maturation of T lymphocytes
What is the purpose of the blood-thymus barrier?
To prevent the developing T cells from contacting blood-borne antigens
What type of capillaries are found in the thymic cortex?
Continuous
Why are self-macromolecules permitted to cross the blood-thymus barrier?
To eliminate those T cells that are programmed against self-antigens
This quiz is about Antigen-Presenting Cells (APCs) and their role in the immune response, including the process of phagocytosis, antigen processing, and presentation to T cells.
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