The Hair Loss Encyclopedia
antibody protecting mucous membranes from pathogens
Immunoglobulin A (IgA) is a type of antibody that plays a crucial role in the immune function of mucous membranes. It is found in high concentrations in areas such as the respiratory and gastrointestinal tracts, as well as in saliva, tears, and breast milk, where it helps to neutralize pathogens and prevent infections.