【正文】
Cap. BM。 keypoints ? The basic structure of trachea. ? Histologic structure of conduction portion. ? Histologic structure of respiratory portion. ? Esp. the alveolar epithelium 第二十九頁,共三十一頁。 type I alveolar C 第二十一頁,共三十一頁。 Respiratory portion- Respiratory bronchiole ?The wall is interrupted ?Simple cuboidal Epi, clara C ?SMC 第十四頁,共三十一頁。 EM: epithelium of trachea 4. Small granule C C C C C 第六頁,共三十一頁。 ? Nasal cavity, pharynx larynx. ? Trachea bronchi. ? Lung. 第三頁,共三十一頁。 Conduction portion- lobular Br small Br ?Epithelium ?Goblet C ?Glands ?Cartilage plate ?SMC 第十一頁,共三十一頁。 (2) Respiratory portion duct alveolar sac ?The wall, many alveoli open into. ?Knobs in the wall of alveolar duct ?Knobs is sphincterlike SMC. 第十八頁,共三十一頁。 Terminal bronchiole Respiratory bronchiole Alveolar duct Alveolar sac 1 2