title: Ventilatory effects of the pulse wave in the maxillary sinus.
abstract: The perostial ventilation of the human maxillary sinus is achieved via three main factors: diffusion, respiration wave and the mucosal pulse wave. The ventilatory factors have been studied with the help of a model sinus. The values used in the model are based upon in vivo human studies. Diffusion is responsible for the most important ventilatory effect in large ostia. Respiration has a ventilatory effect in all ostial sizes. The mucosal pulse has a ventilatory effect when the pulse volume exceeds the dead space of the ostium. When the ostial volume is diminished, the pulse-induced ventilation increases and keeps the total ventilation constant regardless of ostial size. In very small ostia, the mucosal pulse and respiration are the two important ventilatory factors.
mesh_terms: D004058:Diffusion; D006801:Humans; D008443:Maxillary Sinus / Q000502:physiology*; D008953:Models, Anatomic; D009092:Mucous Membrane / Q000502:physiology; D010100:Oxygen; D011312:Pressure; D012119:Respiration
chemical_list: D010100:Oxygen