The bronchial mucous glands--their hypertrophy and change in intracellular mucus.
D001980:Bronchi / Q000473:pathology*; D003550:Cystic Fibrosis / Q000473:pathology*; D006651:Histocytochemistry; D006801:Humans; D009092:Mucous Membrane / Q000473:pathology; D012141:Respiratory Tract Infections / Q000473:pathology*