CFD 3240 Lecture Notes - Lecture 13: Innate Immune System, Passive Immunity, B Cell
20 Feb 2019
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Attempts to prevent/stop invasions of pathogens causing disease. Prions, viruses, bacteria, fungi, protozoans, and multicellular parasites (microbes any microscopic organism) Same defenses regardless of the pathogen type. Part is inborn part develops over course of life. A specific attack against a specific pathogen. Skin, mucous membranes, mucus, hairs, tears, saliva, urine, defecation, and vomiting. Sebum, lysozyme, gastric juice, vaginal secretions: normal bacterial flora (intestines) ________cellular & chemical defenses: antimicrobial proteins ________and the _______________ Fever, ____________(basophils & mast cells), and _________ (neutrophils & macrophages) T-cell and b-cell lymphocytes, antibodies, and macrophages: protect against cancer. Used to recycle nutrients (_________) and clean up waste (______________microbiology) Some cause disease (__________) in humans (________ microbiology) Pathogens and what we recognize as not self. Synthesis of chemicals (melanin & vitamin d) Oil glands, sweat glands, hair, and nails. Outermost layer dead keratinocytes nonspecific defense. _____________- makes melanin; role in skin color. Epidermis and dermis are the skin"s two layers.
