Basic Respiratory Anatomy Worksheet

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

The mouth and nose.

2. Where does the air go to from the nose and mouth?

To the pharynx and then into the trachea.

3. In between the pharynx and the trachea what structure does this lesson leave

out?

The esophagus and the epiglottis

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

It is distal in reference to the esophagus.

5. What structures moisten the air in the Respiratory System?

Your nose and mouth

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

The alveoli.

7. Where does gas exchange take place in the lungs?

In the alveoli

8. What is the main muscle of respiration?

The diaphragm

9. What happens when we inhale? Exhale?

The diaphragm contracts and when we exhale the diaphragm rests

10. Sketch a picture of the respiratory system. Include the following structures:

nose, mouth, pharynx, larynx, trachea, bronchus, bronchioles, alveolis and lungs.