Giannessi F, Pera L
Boll Soc Ital Biol Sper. 1984 Apr 30;60(4):687-92.
The sensory epithelium of the paratypanic organ (Vitali) was studied by means of the electron microscope. Two kinds of cells are present. One type extends from the basement membrane to the surface of the epithelium; their nuclei are arranged close to the connective tissue and are surrounded by a pale cytoplasm. The distal part of these cells, which are denser and richer in organelles, possess microvilli. The cells of the second type are located above the basement membrane and are found between the upper parts of the cells of the first type. Their cytoplasm is rich in small round vesicles, free ribosomes and cisternae of rough endoplasmic reticulum are present especially in the infranuclear zone. The apical part contains a Golgi apparatus lysosomes and multive sicular bodies. At the apex each cell possesses a cuticular plate numerous stereocilia and one kinocilium. The stereocilia become increasingly longer from one side of the cell surface to the other and the kinocilium is situated on the side where the stereocilia are longest. Nervous fibers are present in the epithelium and are in close contact with the cells of the second type. The cells we have described are remarkably similar to the supporting and hair cells of the vestibular sensory epithelium.
运用电子显微镜对副鼓室器官（维塔利）的感觉上皮进行了研究。存在两种细胞。一种细胞从基底膜延伸至上皮表面；其细胞核靠近结缔组织排列，周围是淡染的细胞质。这些细胞的远端部分密度更大且细胞器更丰富，具有微绒毛。第二种类型的细胞位于基底膜上方，在第一种类型细胞的上部之间。其细胞质富含小圆形囊泡，游离核糖体以及粗面内质网池尤其存在于核下区。顶端部分含有高尔基体、溶酶体和多囊泡体。在顶端，每个细胞都有一个角质板、许多静纤毛和一根动纤毛。静纤毛从细胞表面的一侧到另一侧越来越长，而动纤毛位于静纤毛最长的一侧。上皮中有神经纤维，且与第二种类型的细胞紧密接触。我们所描述的这些细胞与前庭感觉上皮的支持细胞和毛细胞非常相似。
