Across
- 2. you inhale oxygen and exhale carbon
- 4. a tube that is held open by C-shaped rings of cartilage
- 5. this is where gas exchange occurs in the lungs
- 7. alveoli look like bunches of what type of fruit
- 9. a tube-like passageway at the top of the throat that receives air, food, and liquids from the mouth or nose
- 10. the main organs of the respiratory system
Down
- 1. two narrower tubes that lead into the lungs
- 3. a large muscle below the lungs that contracts and relaxes as air moves into and out of your lungs
- 6. the parts of the respiratory system work together and supply the body with _____
- 8. this organ is part of the digestive and respiratory system