Across
- 4. part of the throat behind the mouth and nasal
- 7. a single breath
- 9. any of the major air passages of the lungs
- 11. the chemical element of atomic
- 12. a thin skeletal muscle
- 13. infection that inflames the air sacs
Down
- 1. hollow muscular organ forming an air alveoli any of the many tiny air sacs of the lungs
- 2. a colorless, odorless gas produced
- 3. system the network of organs and tissues
- 5. a large membranous tube reinforced
- 6. condition in which your airways narrow
- 8. pair of spongy, air-filled organs
- 10. a lung condition that causes shortness of breath