Meban C
Cell Tissue Res. 1978 Jul 5;190(2):337-47. doi: 10.1007/BF00218179.
The epithelium covering the respiratory portion in the lung of the slow-worm (Anguis fragilis) has been studied by electron microscopy. The epithelium is composed of two different types of pneumonocytes. The type I pneumonocytes are roughly squamous and their cytoplasmic sheets spread over relatively large areas of the septal walls. These cytoplasmic sheets are attenuated in regions where they overlie septal capillaries; they usually have extensive areas of contact with adjacent cells. The type II pneumonocytes are also squamous but are more compact and possess more organelles. Their osmiophilic inclusion bodies are especially conspicuous. Most of their microvilli are concentrated on the surfaces of cytoplasmic "hillocks". Deposits of membranous material are present in the air sacs. The morphological evidence suggests that the type II cells of Anguis secrete surface-active material.
利用电子显微镜对慢缺肢蜥（Anguis fragilis）肺脏呼吸部的上皮组织进行了研究。该上皮组织由两种不同类型的肺细胞组成。I型肺细胞大致呈鳞状，其细胞质片层覆盖在隔壁壁的相对大面积上。这些细胞质片层在覆盖隔壁毛细血管的区域变薄；它们通常与相邻细胞有广泛的接触区域。II型肺细胞也是鳞状的，但更紧凑且拥有更多细胞器。它们的嗜锇性包涵体特别明显。它们的大多数微绒毛集中在细胞质“小丘”的表面。气囊中存在膜状物质沉积物。形态学证据表明，慢缺肢蜥的II型细胞分泌表面活性物质。
