Which antibody group is most common in human milk and tears?

Question

Quizplus · Accepted Answer

IgA antibodies are the most abundant immunoglobulin in human milk and tears. These antibodies play a crucial role in protecting the mucosal surfaces of the body, such as the gastrointestinal tract and respiratory tract, from invading pathogens. IgG and IgM antibodies are found in lower levels in human milk and tears, while IgD and IgE are not found in significant amounts in these fluids.

Which Antibody Group Is Most Common in Human Milk and Tears