Smith G
Lab Anim. 1977 Oct;11(4):223-8. doi: 10.1258/002367777780936404.
Recent studies have shown the rat larynx to be an important organ in the evaluation of irritancy of inhaled materials. Serial sections and scanning electron microscope observations have clarified its basic structure. In particular the cartilage pattern and the distribution of the epithelia lining the lumen have been determined. There are 2 specialised epithelia--stratified squamous (found in areas subject to wear) and ciliated pseudostratified columnar (which produces and transports mucus). Aways intervening between these is an unspecialised epithelium, the non-ciliated columnar. The marked variation in type of epithelium over a short distance within the larynx emphasises the need to take sections in the same plane when comparing different specimens.
最近的研究表明，大鼠的喉部是评估吸入性物质刺激性的重要器官。连续切片和扫描电子显微镜观察已阐明了其基本结构。特别是软骨模式和管腔内衬上皮的分布已被确定。有两种特殊的上皮——复层鳞状上皮（见于易受磨损的区域）和纤毛假复层柱状上皮（产生并运输黏液）。在这两种上皮之间总是存在一种未特化的上皮，即无纤毛柱状上皮。喉部内短距离内上皮类型的显著变化强调了在比较不同标本时在同一平面取材的必要性。
