Basic Respiratory Anatomy Worksheet

1. What are the two entrances for oxygen to enter the respiratory system?
Nose and Mouth

2. Where does the air go to from the nose and mouth?
Pharynx and then goes through the trachea

3. In between the pharynx and the trachea what structure does this lesson leave out?
The Esophagus

4. Where is the trachea located in reference to the esophagus?
Anterior

5. What structures moisten the air in the Respiratory System?
The nose and the mouth

6. What is the name for the small air sacs at the end of the bronchioles?
Alveoli

7. Where does gas exchange take place in the lungs?
In the alveoli it exchanges oxygen and carbon dioxide

8. What is the main muscle of respiration?
Diaphragm

9. What happens when we inhale? Exhale?
· When we inhale the diaphragm contracts
· When it relaxes we exhale

10. Sketch a picture of the respiratory system. Include the following structures: nose, mouth, pharynx, larynx, trachea, bronchus, bronchioles, alveoli and lungs.
On a seperate piece of paper!!! :)