Select | | View | Download | | 8.1 The human breathing system | | |
| 8.2 Gas exchange in the air sacs | | |
| 8.3 Transport of respiratory gases | | |
| 8.4 The mechanism of ventilation | | |
| 8.1 The human breathing system (Bilingual) | | |
| 8.2 Gas exchange in the air sacs (Bilingual) | | |
| 8.3 Transport of respiratory gases (Bilingual) | | |
| 8.4 The mechanism of ventilation (Bilingual) | | |