LP2 Flashcards
IgG
*75% (highest) % of total immunoglobulin
*plays a role in bloodborne and tissue infections
*activates complement system
*crosses PLACENTA
IgA
*protects against GI, GU, and respiratory infections
*passes to neonate in BREAST MILK for protection
IgM
*the 1st immunoglobulin in response to bacterial & viral infections
*activates complement system
IgD
*takes part in allergic and some hypersensitivity reactions
*combats parasitic infections
agglutination
1 antibody can crosslink two antigens, causing them to bind/clump together
this clumping effect helps clear the body of the invading organism
opsonization
in this process, the antigen-antibody molecule is coated with a sticky substance that also facilitates phagocytosis