1. Which muscle helps humans breathe by contracting and relaxing? A) Heart B) Diaphragm C) Liver D) Kidney
2. The tiny hairs that keep mucus and dirt out of your lungs are called: A) Lung hairs B) Stubble C) Bronchioles D) Cilia
3. What gas is taken in during inhalation? A) Carbon Dioxide B) Oxygen C) Nitrogen D) Hydrogen
4. In the respiratory system the air moves down the windpipe and into the …….. A. Trachea B. Bronchioles C. Bronchi D. Alveoli
5. Which letter represents the diaphragm ?
6. What tiny structures in the lungs are responsible for gas exchange? A) Bronchi B)Diaphragm C) Trachea D) Alveoli
7. What structure prevents food from entering the windpipe during swallowing? A) Alveoli B) Bronchi C) Epiglottis D) Diaphragm
8. Which part of the respiratory system carries air from the nose to the lungs? A) Esophagus B) Pharynx C) Trachea D) Intestine
9. As you breathe, this contracts and flattens to give your lungs room to fill up with air: A) Larynx B) Lung balloon C) Diaphragm D) Bronchiole
10. _________ is not good for your lungs. A) Exercising B) Singing C) Smoking D) Yelling
11. The voice box is also known as the: A) Alveoli B) Larynx C) Trachea D) Motormouth
12. Humans respire to supply their bodies with oxygen, which our cells use to produce ...... A. Nutrients B. Nitrogen C . Fats D. Energy
13. Humans respire to supply their bodies with oxygen, which our cells use to produce ...... A. Nutrients B. Nitrogen C . Fats D. Energy
14. What is the primary organ responsible for respiration in humans? A) Heart B) Liver C) Lungs D) Stomach
15. In the respiratory system the air moves down the Bronchioles and into the …….. A. Trachea B. Bronchioles C. Bronchi D. Alveoli
16. What structure prevents food from entering the windpipe during swallowing? A) Alveoli B) Bronchi C) Epiglottis D) Diaphragm
17. What is the name of the tiny air sacs in your lungs? A) Bronchioles B) Ravioli C) Alveoli D) Bronx
18. The muscle responsible for moving air in and out of your lungs is the .....A) Heart B) Diaphragm C) Rib Cage muscle D) Biceps
19. What is the function of the part shown in the diagram ?
20. Another name for the Alveoli is the ......
21. our body couldn’t breathe without this system. Which one is it? A) Perspiration system B) Respiratory system C) Photosynthesis D) Urinary system
Gavin Thomas
