RESPIRATORY SYSTEM
Across
- 2. A muscle that separates the thoracic and abdominal cavities
- 3. A condition characterized by difficulty breathing, especially during exercise
- 5. The tiny air sacs in the lungs where gas exchange occurscat Likes to chase mice
- 6. The inflammation of the lungs
- 7. The windpipe
Down
- 1. A tube that carries air from the trachea to the lungs
- 4. A thin layer of tissue that covers the lungs and lines the chest cavity