PNB 2265 Lecture Notes - Lecture 8: Lingual Tonsils, Phagocytosis, Adenoid
16 Aug 2018
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Document Summary
The immune system protects you against an almost limiteless number of threats: by using tissue cells proteins peptides and chemicals in a coordinated manner. The immune system has a memory (it remembers) and recognizes threats. Any problem with this system can be catastrophic. Lymphocytes b (bursa) and t (thymus), nk, basophils, eosinophils. Passive (non-specific) and active (specific with memory) systems. Negative aspects: allergies, hypersensitivity, autoimmune disease, transplant rejection. Ticks carry the following diseases: lyme diseases, powassan virus, ehrlichiosis, heartland virus new diseases. Entry: skin, nasal membrane, mucosa, gi. Blood: within blood cells or blood. Outside barriers coated by mucous that acts like fly paper. Immunity: call and fluid bases, non-specific, specific with memory. Macrophages: specific and non-specific, no memory. Physical: tears, ear wax, stomach acid, etc. Stereotypic response, same for all threats: nature of response gives no identification of threat, rash, fever, inflammation, external anatomic and chemical barriers.
