Across
- 6. small tree-like branches or small tubes inside of the lungs
- 7. windpipe or tube that connects the larynx to the lungs
- 8. sacs or grape-like structures in which air in the lungs makes exchanges with the blood vessels (capillaries) in the lungs
Down
- 1. muscle that separates the chest cavity from the abdominal cavity and is essential for breathing
- 2. tubes that connect the trachea to each lung
- 3. upper respiratory pathways for air to enter and leave the body
- 4. membrane around each lung
- 5. part of an organ, one lung has 3 and the other has 2