1. Respiratory System

2. Function of Respiratory System
exchange of gases (O2 and CO2) between organism and its surroundings

3. Image from:https://myhealth. alberta. ca/health/pages/conditions. aspx

4. Image from: http://www.umm.edu/imagepages/19595.htm

5. Image from: http://hyperphysics. phy-astr. gsu

6. Gas Exchange
Animation of gas exchange in alveoli (some problems with sound, but good video):

7. Breathing…
Image from:

8. Breathing
animation of movement of diaphragm and ribcage in breathing; simple graphics but effective explanation:

9. Smoking? this is a powerful anti-smoking ad from Thailand…
Image from: