MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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epithelial cells
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Macrophages, dendritic cells, and B cells
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Cells that express MHC-I molecules
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polymorphonuclear cells
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Detailed explanation-1: -There are three main types of antigen-presenting cells in peripheral lymphoid organs that can activate T cells-dendritic cells, macrophages, and B cells. The most potent of these are dendritic cells (Figure 24-43), whose only known function is to present foreign antigens to T cells.
Detailed explanation-2: -CD4 cells are a type of white blood cell. They’re also called CD4 T lymphocytes or “helper T cells.” That’s because they help fight infection by triggering your immune system to destroy viruses, bacteria, and other germs that may make you sick.
Detailed explanation-3: -Introduction. In addition to their role as secretors of antibodies, B cells function as professional antigen-presenting cells (APCs) for CD4+ T cells by expressing cell-surface major histocompatibility complex class II (MHCII) molecules with bound peptide, the ligand of the / T cell receptor.