Bronchial secretion secretes:: (A) IgA, (B) IgE, (C) IgM, (D) IgG
Answer is A. (IgA) (140 - CP) (89-AN 7th)IgA - Principal immunoglobulin that appears in the sero-mucinous secretions such as milk,, saliva, tears, nasal fluids, sweat and secretions of respiratory, intestinal and genital tracts,