The function of mucus.
D005122:Exudates and Transudates; D041981:Gastrointestinal Tract; D006801:Humans; D009077:Mucins; D009092:Mucous Membrane; D009093:Mucus; D012137:Respiratory System
D009077:Mucins
EXUDATES AND TRANSUDATES; GASTROINTESTINAL SYSTEM; MUCIN; MUCOUS MEMBRANE; RESPIRATORY SYSTEM