1) 1. Which part of the body filters the air we breathe in? a) a. Trachea b) b. Nose c) c. Lungs d) d. Diaphragm 2) 2. What part connects the nose and the lungs? a) a. Trachea b) b. Bronchi c) c. Alveoli d) d. Diaphragm 3) 3. Which organ is responsible for the exchange of oxygen and carbon dioxide? a) a. Nose b) b. Lungs c) c. Bronchi d) d. Diaphragm 4) 4. What is the function of the diaphragm? a) a. Filters air b) b. Helps the lungs move during breathing c) c. Transfers oxygen to the blood d) d. Prevents air from escaping 5) 5. Which of the following habits is good for your lungs? a) a. Smoking cigarettes b) b. Playing in dusty areas c) c. Doing regular exercise d) d. Breathing polluted air 6) 6. It is the main passageway of air going to the lungs. a) Bronchi b) Trachea c) Diaphragm d) Alveoli 7) 7. These tiny air sacs inside the lungs are where gas exchange happens. a) Lungs b) Bronchi c) Alveoli d) Trachea 8) 8. The two branches of the trachea that carry air into each lung. a) Bronchi b) Alveoli c) Diaphragm d) Capillaries 9) 9. The main organs of the respiratory system. a) Kidneys b) Heart c) Lungs d) Stomach 10) 10. The muscle that moves up and down to help us breathe. a) Trachea b) Diaphragm c) Bronchi d) Rib cage

“Breathe and Think”

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