| A | B |
|---|
| diaphragm | separates the thorax from the abdomen |
| pharynx | joins the nasal cavity to the trachea |
| nasal cavity | opening of the respiratory system |
| uvula and epiglottis | hanging flaps of skin in your pharynx |
| larynx | at the upper end of the trachea |
| trachea | links the larynx tto the bronchi |
| bronchi | extension of the trachea |
| bronchioles | small extensions of the bronchi |
| alveoli | link the bronchioles to the blood vessels |
| lungs | contain the bronchioles and the alveoli |
| hairs and capillaries | found inside the nasal cavity |
| mucus | found inside the nasal cavity, the trachea and the bronchi |
| cilia | found in the trachea and the bronchi |
