II. Identify the parts of the respiratory system which is being referred to. Write the name of that part before the number. Choose your answer from the box.
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alveoli nostrils mucus pharynx epiglottis larynx cilia bronchioles
bronchi trachea
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1. Closes over your larynx when you swallow.

2. Two short branches at the end of the trachea that carry air into the lungs

3. Cluster of tiny thin walled sacs found at the end of each bronchioles

4. Substance produced by the lining of the nasal cavity.

5. Tiny hair-like structures that trap bacteria in the trachea.

6. A tube made up of C-shaped rings of the cartilage

7. Opening of the nose that leads to the nasal cavity.

8. A tube-like passage for both food and air.

9. Produces vocal sounds.

10. Compose of alveoli arranged in grape-like clusters​