Harada Y
Acta Otolaryngol. 1977 Mar-Apr;83(3-4):284-90. doi: 10.3109/00016487709128847.
Canine Eustachian tube epithelium was examined by means of the scanning electron microscope. The part of the tube at the bone-cartilage junction was found to be the most active. It is here that goblet cells and large numbers of ciliated cells were found. Cilia were dense and covered by a mucus blanket. Near the tympanic end of the Eustachian tube, goblet cells were more numerous and ciliated cells less so. Near the pharyngeal end, goblet cells were numerous, while cilia were scanty and not uniform in length. Our findings support the concept that middle ear clearance is carried out by an active mucociliary mechanism as in other parts of the upper respiratory system.
通过扫描电子显微镜对犬咽鼓管上皮进行了检查。发现咽鼓管在骨-软骨交界处的部分最为活跃。正是在这里发现了杯状细胞和大量纤毛细胞。纤毛密集，被黏液毯覆盖。在咽鼓管的鼓室端附近，杯状细胞较多，纤毛细胞较少。在咽端附近，杯状细胞很多，而纤毛稀少且长度不一。我们的研究结果支持这样一种观点，即中耳的清洁是通过与上呼吸道其他部位一样的活跃的黏液纤毛机制来进行的。
