Across
- 2. the hallow mascullar organ forming on air passage to the lungs and holding the vocal cords in humans and other mammals
- 4. removes waste produced by cellular activities
- 5. the movement of air out of the lungs
- 8. the movement of air into the lungs
- 9. a dome-shape muscle located at the bottom of the chest activity
Down
- 1. further divide into small tubes called bronchioles
- 3. transports air to the bronchial tubes
- 6. the bronchial tubes narrow preventing oxygen from entering the lungs
- 7. the opening to the windpipe