发声时，下咽黏膜、食管口黏膜与黏液均参与振动。
When phonation, the mucosa, mucus of infra pharyngeal and esophageal meatus take part in vibration.
结论：鼻黏膜杯状细胞及黏膜下腺体的增生是黏液纤毛清除功能障碍的原因之一，尤其是病理性腺体的增生。
Conclusion: Goblet cell and submucosal gland hyperplasia of nasal mucosa may cause mucociliary clearing disfunction, especially the pathologic glands.
结论M S保护胃黏膜的作用呈剂量依赖性，其作用机制与抗氧化和促进胃黏膜黏液生成有关。
Conclusions m s protects gastric mucosa with dose dependent effect and the mechanism of action is relevant with its antioxidative capability and increase of mucus on the stomach surface.
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