Bouljihad M, Leipold H W
Department of Pathology and Microbiology, Kansas State University, Manhattan 66506.
Zentralbl Veterinarmed A. 1994 Oct;41(8):573-86. doi: 10.1111/j.1439-0442.1994.tb00125.x.
The cellular population lining the bronchiolar and alveolar epithelium of the lower respiratory tract of three clinically healthy, purebred Suffolk lambs of both sexes and 3-4 months old was studied using a transmission-electron microscope. The epithelium of primary and secondary bronchioles consisted of four cell types: basal cells, intermediate cells, ciliated cells, and non-ciliated (Clara) cells, whereas the epithelium of terminal and respiratory bronchioles consisted of only two kind of cells: ciliated and Clara cells. The alveolar wall, including alveolar ducts and saccules, was covered by type I and type II pneumocytes. In addition, the presence of pulmonary intravascular macrophages was a constant in most of the alveolar capillaries. The morphologic characteristics of all these cells are described in detail and discussed.
使用透射电子显微镜对三只临床健康、3 - 4月龄、雌雄均有的纯种萨福克羔羊下呼吸道细支气管和肺泡上皮的细胞群体进行了研究。初级和次级细支气管的上皮由四种细胞类型组成：基底细胞、中间细胞、纤毛细胞和无纤毛（克拉拉）细胞，而终末细支气管和呼吸性细支气管的上皮仅由两种细胞组成：纤毛细胞和克拉拉细胞。肺泡壁，包括肺泡管和肺泡囊，由I型和II型肺细胞覆盖。此外，在大多数肺泡毛细血管中都经常存在肺血管内巨噬细胞。详细描述并讨论了所有这些细胞的形态特征。
