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Immune System

Anatomy Final

QuestionAnswer
Fever a systemic response that raises body temperature to inhibit bacterial infection
Skin a physical barrier that prevents pathogens from entering the body
Mucous trap pathogens using stick mucous
Phagocytes WBC that eat foreign invaders
Inflammation increased blood from bringing WBC to fight infection
Interferons/complement proteins proteins that inhibit viral replication or help destroy bacteria
Chemical barriers Stomach acid or enzymes that kill bacteria
Contrast non-specific defenses and defenses non-specific defenses have immediate general protecton against pathogens and specific defenses have deylayed long term immunity against particular pathogens
Innate you are born with immunity
Acquired develops after exposure to a pathogen or vaccine
Properties of immunity - specificity distinguish between pathogens and target a specific one
Properties of immunity - versatility respond to a variety of different antigens
Properties of immunity - memory able to remember a previous pathogen
Properties of immunity - tolerance immune system's ability to ignore the body's own healthy cells and harmless substances.
Helper T cells secrete cytokines that coordinate the activities of other immune cells like B cells
Cytotoxic T-cells directly attacks and destroys cells infected by a virus
Regulatory T-cells helps maintain immune tolerance
Memory t-cells if a pathogen enters body again, recognize it quickly and trigger an effective immune response
What do antibodies do? circulate in the blood and fluids and identity/neutralize foreign objects
What do B-cells produce? antibodies
Autoimmune disorder when the immune system loses the ability to distinguish self and non-self cousing the immune system to attack healthy tissue Ex: type 1 diabetes
Immunodeficiency An immune deficiency where the immune systems ability to fight infections is compromised or absent Ex: HIV or SCID
Allergy an inflammatory overreaction by the immune system to a harmless environment Ex: pollen or peanuts
Created by: user-2042439
 

 



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