Respiratory System Review Questions

1. It the organ system that helps us take in oxygen and release carbon dioxide.

• A. Digestive System

• B. Excretory System

• C. Respiratory System

• D. Skeletal System

2. What do you call to the hair-like structures found on the walls of the trachea and nasal cavity that sweep away dust and germs to prevent them from entering your lungs?

• A. Broom

• C. Cilia

• D. Mucus

• E. Hair

3. They are the round structures inside the lungs that serve as site of gas exchange.

• A. Alveoli or Air sacs

• B. Bronchioles

• C. Cilia

• D. Nose

4. Parts of this tree were used to represent the parts of Respiratory System.

• A. Malunggay

• B. Mayana

• C. Madre Cacao

• D. Bayabas

5. The following serves as passageway of air except ______________.

• A. Diaphragm

• B. Bronchi

• C. Alveoli

• D. Trachea

6. The right lung is bigger than the left lung.

• A. True

• B. False

7. As the diaphragm moves down, the chest cavity including the Lungs expand and air rushes in. This process is called ___________.

• A. Inhalation

• B. Exhalation

8. As the diaphragm moves up and relaxes, the chest cavity including the Lungs contract and air rushes out. This is process is called ___________.

• A. Inhalation

• B. Exhalation