vocab words lymph system

immunity

(resistance) ability to fight/ward off pathogens

chyle

fluid in lacteals rich in lipid

susceptibility

lack of resistance

MALT

mucosa associated lymphatic tissue

metastasis

spread of disease, occurs quickly in lymph and blood

lymphedema

excess fluid in interstitial space

elephantiasis

parasite that blocks lymph vessels = edema

MAC

membrane attack complex (revolved around complements)

perforins

creates small hole to cause cytsosis

granzymes

induces apoptosis

antigens

substance w/ reactivity and immunogenicity/antibody generator

MHC

major histocompatibility complex: membrane protein that helps t cells recognize Ag

APC

antigen presenting cells (macrophages, b cells, dendritic cells), present MHC 2 to helper T cells

exogenous Ag

dust, pollen, bacteria

all body cells

(except RBCs) present MHC1 to cytotoxic T cells

endogenous Ag

virus, transplanted tissue, cancer cells