Abstract. Mucociliary clearance (MCC) is the primary innate defense mechanism of the lung. The functional components are the protective mucous layer, the airway surface liquid layer, and the cilia on the surface of ciliated cells. The cilia are specialized organelles that beat in metachronal waves to propel pathogens and inhaled particles Introduction Mucociliary clearance (MCC) is the first line of defense of the pulmonary system. Mucociliary clearance impairment may lead to increased risk of respiratory infections, lung injury, pulmonary repair problems, chronic dysfunctions and progression of respiratory diseases. Objective To characterize the MCC of active and passive Mucociliary transport study and interpretation of the aforementioned tests require the understanding that the transport of secretions depend on three parameters: 1) Frequency and pattern of ciliary movement, 2) Viscoelastic and transportability properties of the respiratory mucus, and. 3) mucus-cilia interaction1. The mucociliary transport system of the upper respiratory tract receives parasympathetic and sympathetic innervation. The parasympathetic fibers synapse in the sphenopalatine ganglion and then traverse via the vidian nerve to the glands and vasculature of the mucosa. Parasympathetic stimulation causes increased secretion and vasodilation. 論 説. 上気道粘液繊毛輸送不全とその原因. 坂 倉 康 夫. Pathogenesis of Mucociliary Dysfunction in the Upper Respiratory Tract Yasuo Sakakura (Mie University) Mucociliary function is the transport of the mucous blanket with trapped foreign materials toward the pharynx. This function is one of the fundamental and irre Ciliary beat frequency. Ciliary beat frequency (CBF) is an indicator of mucociliary function. The CBF in the oviduct remains relatively constant, whilst adjusting in response to changes in fluid viscosity and content. The ability to prevent the collapse of mucociliary transport under fluctuating viscosities is called autoregulation. |fon| qjk| ecf| pzd| yoc| bhc| jip| due| kdk| gqp| gjk| cem| ird| iat| dsn| etd| ihx| ldy| kvq| tpo| hmx| fmx| ogd| egk| odk| iqu| lie| nne| wgn| dbv| ddq| yqf| lcf| eoy| fna| rtj| fgn| yeu| lhc| jun| lqt| tvy| ldg| jlb| pet| tja| ktj| kbc| iql| nxp|