principles of innate and acquired Flashcards
what are features of acquired immunity?
specificity
diversity
memory
self/nonself discrimination
what are the five types of barriers?
anatomic physiologic phagocytic inflammation NK cells
what are the types of anatomic barriers?
epithelial cells and mucous membranes
where are mucous membranes found?
Respiratory / GI / Reproductive tracts
what are the physiological barriers?
temperature
low ph
chemicals : interferons and complements
what is the function of lysozyme?
lyses cell wall
where are lysozyme found ?
tears
saliva
respiratory fluid
what is the role of interferon?
induces antiviral state/prevents viral replication
what are the 3 roles of compelements?
opsonization
chemotaxis
lysis
what are the phagocytes?
macrophages
dendritic cells
neutrophils
monocytes
what are phagocytes active against?
bacteria and fungi
what cells are involved in inflammatory response?
leukocytes
what type of cell is an NK cell?
lymphocyte
NK cells respond immediately by?
cytotoxicity
NK cells kill what?
virus infected target cells