B-cells/Antibodies

IgG pneumonic

good all-rounder

IgG general info

most abundant
circulates for weeks

IgG function (2)

provides passive immunity by crossing placenta
targets viruses/bacteria

IgA pneumonic

Abdomen

IgA general info

in mucosa
monomeric form in blood but dimer form in secretions

IgA fucntion (3)

protects mucosal surfaces (including digestive tract)
provides passive immunity through breast milk
targets viruses/bacteria

IgM pneumonic

maiden

IgM general info

first class produced during primary immune response

IgM fucntion (3)

activating complement
targets extracellular bacteria
acts as BCR receptor with IgD

IgE penumonic

epipen

IgE general info

low conc. in blood

IgE function/effects (3)

activates mast cells providing powerful parasite immunity

IgD pneumonic

diddy

IgD general info

present on naive cells
specific function unknown

IgD function (1)

acts as BCR with IgM