BIOS 195 EXAM - 2. adaptive immunity –Answer specific, develo...

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BIOS 195 EXAM

• innate immunity

–Answer present at birth, non specific. skin, mucosal surfaces, physical and chemical barriers

• adaptive immunity

–Answer specific, develop memory, T and B cell, viral infections, cancer

• First line of defense

–Answer blocks at portal of entry! INNATE, physical, chemical, genetic

• second line of defense

–Answer INNATE, protective cells and fluids, inflammatory, phagocytosis, interferons, complement, fevers

• 3rd line of defense

–Answer ADAPTIVE, specific, memory cells (T and B), antibodies, cytotoxicity

• Lysozyme

–Answer an enzyme found in saliva and sweat and tears that destroys the cell walls of certain bacteria

• White Blood Cells

–Answer Recognizes and fights foreign material in the body

• Pathogen-associated patterns (PAMPs)

–Answer molecules shared by microorganisms. THE RED FLAGS to signal WBC of invasion to control pathogens

• Pattern Recognition Receptors (PRRs) 1 / 2

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–Answer toll like receptors!! feelers for sensing pathogens

• antigens

–Answer stimulate a response by t and b cells

• Antigen-presenting cells (APCs)

–Answer macrophages, dendritic cells, B cells

• Defensins

–Answer lyse bacteria and fungi

• Hemopoiesis

–Answer production of blood cells

• Granulocytes

–Answer neutrophils, eosinophils, basophils

• Agranulocytes

–Answer lymphocytes and monocytes

• Neutrophils

–Answer Most abundant white blood cell. Phagocytic and tend to self-de- struct as they destroy foreign invaders, limiting their life span to a few days.

• Eosinophils

–Answer destroy parasitic worms (eukaryotic pathogens)

• Basophils

–Answer produces histamine. release potent chemical mediators, allergy, parasites, inflammation

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