Across
- 1. Combination of several kinds of structure that form the unit for respiration
- 2. Supplies oxygen to and remove carbon dioxide from the body’s cells
- 6. Promotes rapid and effective exchange of oxygen and carbon dioxide between blood circulation
- 7. (Nose, Pharynx, Larynx)
- 8. Distribute air to the lungs
- 9. made up of 9 cartilages
Down
- 1. Trachea, Bronchial Tree, lungs
- 3. the hallway where air and food passes through to reach the lungs and stomach
- 4. Where air enters the respiratory tract
- 5. part of open passageway through which air reaches lungs from outside