Across
- 2. between the esophagus and the mouth
- 6. cartilage closing the entrance to the larynx
- 8. located between the trachea and bronchioles
- 10. between the eyes and forehead
- 11. between the throat and the trachea
- 13. oxygen uptake and carbon dioxide excretion outside
Down
- 1. stopping the breath
- 3. appearing in the air
- 4. inhalation of oxygen, expeling of carbon dioxide
- 5. muscle separating the thoracic cavity from the abdominal cavity
- 7. it starts with the larynx and ends with a fork in two bronchi
- 9. hole in the bottom of the face
- 11. respiratory system of a human breathing with atmospheric air
- 12. arcuate bone from the spine to the chest