OVERVIEW OF THE IMMUNE SYSTEM
THE GOOD BAD AND UGLY OF THE IMMUNE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Macrophages
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Helper T cells
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Cytotoxic T cells
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Humoral cells
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Detailed explanation-1: -Macrophages are specialized cells that help eliminate foreign substances from your body. TH1 cells also activate cytotoxic T-cells. TH2 helper cells release molecules that activate B-cells.
Detailed explanation-2: -Helper T cells stimulate the B cell through the binding of CD40L on the T cell to CD40 on the B cell, through interaction of other TNF-TNF-receptor family ligand pairs, and by the directed release of cytokines.
Detailed explanation-3: -B cells can prime naive CD4+ T cells in vivo in the absence of other professional antigen-presenting cells in a CD154-CD40-dependent manner.
Detailed explanation-4: -A helper T cell is a type of white blood cell and a type of lymphocyte. Also called CD4-positive T lymphocyte.
Detailed explanation-5: -Helper T-cells stimulate B-cells to make antibodies and help killer cells develop. Killer T-cells or cytotoxic T-cells directly kill cells that have already been infected by a foreign invader.