1. Which parts are lined with mucus that help filter dust particles? Nasal

cavity and _________

A. bronchi B. larynx C. lungs D. trachea

2. Where does the exchange of gases take place?

A. alveoli B. bronchi C. nostrils D. trachea

3. Where is the diaphragm located?

A. below the lungs

B. below the voice box or larynx

C. top of the voice box or larynx

D. at the bottom of the trachea

4. When you exhale, how does the diaphragm help air leave the body?

A. expanding the lungs C. pushing air into the lungs

B. making the chest larger D. making the chest smaller

5. What happens when you breath in air? The diaphragm ___________.

A. expands and the chest contracts

B. contracts and the chest expands

C. expands and the ribcage collapses

D. contracts and the ribcage remain the same

6. Which pathway describes the movement of exhaled air?

A. bronchi→ trachea → nose

B. diaphragm →air sacs (lungs)→ trachea → nose

C. air sacs(lungs)→ bronchi →trachea → pharynx →nose

D. diaphragm →air sacs (lungs)→ bronchi →trachea → pharynx

7. Which is the main organ of respiration?

A. bronchi B. larynx C. lungs D. trachea

8.Which shows proper care of the Respiratory system?

A. eat any kind of foods

B. take a bath when not busy

C. consult a doctor when infection becomes severe

D. do breathing exercises regularly

9. What benefit does the respiratory system give to the whole body? It ____.

A. digests all food substances needed for the body

B. transports nutrients to the cells and collects waste materials

C. protects the body from foreign microorganisms that cause ailments

D. facilitates the diffusion of oxygen in the blood and the release of

carbon dioxide from the body

10.Which pathway describes the movement of inhaled air?

A. bronchi→ trachea → nose

B. nose→ pharynx→ trachea → bronchi → air sacs(lungs)

C. air sacs(lungs)→ bronchi →trachea → pharynx →nose

D. diaphragm →air sacs (lungs)→ bronchi →trachea → pharynx​