Respiratory System

12345678910
Across
  1. 5. bones provide support for soft trachea
  2. 6. Smooth muscle tissue found in larynx
  3. 7. Place for human gas exchange
  4. 8. Breath in
  5. 10. Help food and air go to the right place
Down
  1. 1. Protein found in the red blood cells that carries oxygen.
  2. 2. A small elastic cartilage
  3. 3. Breath out
  4. 4. Tunnels allow gas go through
  5. 9. Where do sound come from?