GENERAL ANATOMY
IMMUNE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Non-specific defenses against foreign invaders include all of the following EXCEPT
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stomach acid
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mucus
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lysosymes
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plasma B cells
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Explanation:
Detailed explanation-1: -B-cells are specific immune cells that create antibodies and are activated by specific pathogens only. They attach to a single antigen.
Detailed explanation-2: -Nonspecific defenses include anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN.
Detailed explanation-3: -What are B-cells? B-cells produce antibodies to fight bacteria and viruses. These antibodies are Y-shaped proteins that are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells.
Detailed explanation-4: -NON SPECIFIC DEFENSES: Skin and Mucous membranes, antimicrobial chemicals, natural killer cells, phagocytosis, inflammation and fever.
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