C. 2nd Line of Defense of Innate Localized Acute Inflammation Flashcards
four signs of acute inlfammation
redness, heat, edema (swelling) and pain
in the innate immune system inflammation includes
complement and phagocytes
signaling by various inflammatory mediators cause
the endothelial cells to express selectin and CXCL8 which enables tight binding by neutrophils
fn of capillary dilation and leakiness
facilitates neutrophil tight binding and extravastion
fn of chemoattractants like CXCL8 and C3a and C5a
attract neutrophils to infected area
fn of toll-like receptors and C3bR of neutrophil
enhance attachment to the bacteria
capillary leakiness causes complement proteins to
enter the tisses. bacteria in tissues will activate the alternate and or lectin complement pathways
MAC affects which gram bacteria
negative
C3a and C5a fn
bind to receptors on mast cell causing histamine release. histamine contributes to vasodilation and capillary leakiness