1. 呼吸系统 Respiratory system

2. 实验要求：掌握气管和肺的结构
实验内容：
观察切片：
1.气管（NO.3)
2.肺（NO.31)

3. Trachea (NO.3)
Smooth muscle
Mixed glands

4. Human trachea (NO.3)
Mucosa
Submucosa
Adventitia

5. Pseudostratified ciliated columnar epi.
Lamina propria
Mixed glands

7. Human lung (NO.31) Respiratory bronchiole Bronchiole
Terminal bronchiole
Bronchia

8. Conducting portion
Bronchiole
Bronchia
Terminal bronchiole

9. respiratory portion
Alveolar duct
Respiratory bronchiole
Alveolar sac

10. Pulmonary Alveoli Type I alveolar cell Type II alveolar cell
Alveolar septum

11. Dust cell
phagocytose carbon or duct particles

14. Blood-air barrier

16. The end