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