| Select | | View | Download | | 17.1 Coordination and the nervous system | | |
| 17.2 Neurones as the basic units of the nervous system | | |
| 17.3 The central nervous system | | |
| 17.4 Reflex actions and voluntary actions | | |
| 17.5 The endocrine system | | |
| 17.6 Comparison between nervous coordination and hormonal coordination | | |
| 17.1 Coordination and the nervous system (Bilingual) | | |
| 17.2 Neurones as the basic units of the nervous system (Bilingual) | | |
| 17.3 The central nervous system (Bilingual) | | |
| 17.4 Reflex actions and voluntary actions (Bilingual) | | |
| 17.5 The endocrine system (Bilingual) | | |
| 17.6 Comparison between nervous coordination and hormonal coordination (Bilingual) | | |