| A | B |
|---|
| Pharynx | Common passage way for air and food |
| Epiglottis | Prevents food/drink entering the lungs |
| Larynx | Protects the trachea; also known as the voice box |
| Trachea | A cartilagenous tube; also known as the windpipe |
| Bronchus | Divides into two; entering each lung |
| Bronchioles | Tiny tubes which go into all parts of the lungs |
| Alveoli | Tiny air sacs where gaseous exchange takes place |
| Diaphragm | A muscle involved in breathing |
| Nasal cavity | Traps foreign dust and particles |
| Respiratory system | Supplies the body cells with O2 and gets rid of CO2 |
