title: The physiological roles of saliva.
mesh_terms: D001419:Bacteria; D001683:Biological Clocks; D001777:Blood Coagulation; D004063:Digestion; D005221:Fatigue; D006863:Hydrogen-Ion Concentration; D008409:Mastication; D009909:Oral Health; D012463:Saliva / Q000032:analysis / Q000378:metabolism / Q000502:physiology*; D013060:Speech; D013649:Taste