Respiratory System
Across
- 3. Also known as the windpipe.
- 7. Prevents food and fluids from entering the windpipe.
- 9. Protects thelungs.
- 11. The gas you inhale.
- 12. Carry air to and from the alveoli.
Down
- 1. A muscular sheet below the lungs.
- 2. Makes you able to speak.
- 4. The sacks where gaseous exchange takes place.
- 5. Movement of air in and out of the lungs.
- 6. The process by which gas exchange takes place.
- 8. Also called the throat.
- 10. The process by which energy is released from food.