Model answers
Match the following parts to complete the order of air flow to the lung tissue:
Fill in the words using the following:
Alveolar ducts, bronchioles, external nares, pharynx, trachea, turbinates, alveoli, nasal chambers, Epiglottis, Larynx, right and left bronchi
1. Air enters through the
External Nares
2. It then passes through the
Nasal Chambers
3. Where it is warmed by the
Turbinates
4. It then goes into the
Pharynx
5. Air then passes over the
Epiglottis
6. At the entrance sit of the
Larynx
7. It then goes down the
Trachea
8. This structure splits into a
Left and right Bronchi
9. Air passes form here into smaller
Bronchioles
10. From here the air passes into the
Alveolar ducts
11. Then into the site of gaseous exchange known as the
Alveoli
Now try and explain the following structures:
1. The structure dividing the nasal cavity into the left and right sides – Septum
2. The turbinate bones are lined with this tissue – Ciliated Columbnar epithelium
3. Another term for the nostrils – Nares
4. The structure separating the nasal and oral cavities – Hard Palate
Now complete the revision diagram of the respiratory system: Remembering to also to include the pleural membranes; pleural cavity; rings of cartilage around trachea
