Ch.7 Flashcards
what enhances host defense mechanisms
complement
complement proteins are synthesized where
liver
where are C1 components produced
intestinal epithelial cells
where is factor D made
adipose tissue
def? inactive precursors
zymogens
T. or F: most of the complement proteins zymogens
T
what is the end product of complement
lysis of invading cell
what amplifies inflammatory reactors
complement
does vascular permeability increase or decrease during complement
increase
what kind of cells do complement recruit during inflammation
monocytes and neutrophils
what are the 3 pathways for complement
classical, lectin, and alternative
what activates complement in the classical pathway
Ag-Ab complex
what activates complement in the alternative pathway
pathogen surface agent
what activates complement in the lectin pathway
lectin binding to pathogen surface (carbohydrates)
what do complement fragments act as
opsonins
def? a substance that makes other cells more susceptible to phagocytosis
opsonin