The Respiratory System
Across
- 2. a thin skeletal muscle
- 4. what you breath out
- 7. air passages inside the lungs
- 8. it helps carry air in and out of your lungs
- 10. something you smell with
- 11. thin blood vessels that connect the arteries and the veins
Down
- 1. the movement of a substance from an area of high concentration to an area of lower concentration
- 3. move fresh air into your air
- 5. what helps you breath
- 6. the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in
- 7. A large airway that leads from the trachea to the lungs
- 9. helps with protection,support,resperation