IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

THE GOOD BAD AND UGLY OF THE IMMUNE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Act as the directors or managers of the immune system and are essential to activating both humoral and cell mediated immune responses:
A
B cells
B
Cytotoxic T Cells
C
Helper T cells
D
Immunocompetent macrophages
Explanation: 

Detailed explanation-1: -Dendritic cells (DCs) are professional antigen-presenting cells that link innate and adaptive immunity and are critical for the induction of protective immune responses against pathogens.

Detailed explanation-2: -The primary cell responsible for generating humoral immunity is the B lymphocyte. B lymphocytes comprise 1 to 10% of the lung lymphocyte population and can be separated into two main classes. Plasma cells constitutively secrete IgG and other immunoglobulin subclasses (5, 6).

Detailed explanation-3: -The humoral immune response is mediated by antibody molecules that are secreted by plasma cells.

Detailed explanation-4: -White blood cells are the key players in your immune system. They are made in your bone marrow and are part of the lymphatic system. White blood cells move through blood and tissue throughout your body, looking for foreign invaders (microbes) such as bacteria, viruses, parasites and fungi.

Detailed explanation-5: -B cells are the major cell type involved in the humoral immune response.

Detailed explanation-6: -The humoral immune response fights pathogens that are free in the bodily fluids, or “humours”. It relies on antigens (which are also often free in the humours) to detect these pathogens. An antigen is a biomolecule, such as a protein or sugar, that binds to a specific antibody.

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